diff --git a/gulliver/system/class.g.php b/gulliver/system/class.g.php
index ac0cea33c..71d903ee5 100644
--- a/gulliver/system/class.g.php
+++ b/gulliver/system/class.g.php
@@ -2832,7 +2832,7 @@ class G
      * @param string $array_i
      * @return array
      */
-    public function array_merge_2(&$array, &$array_i)
+    public static function array_merge_2(&$array, &$array_i)
     {
         foreach ($array_i as $k => $v) {
             if (is_array($v)) {
diff --git a/gulliver/system/class.wysiwygEditor.php b/gulliver/system/class.wysiwygEditor.php
index 77f0fdcdc..0236cbdbc 100644
--- a/gulliver/system/class.wysiwygEditor.php
+++ b/gulliver/system/class.wysiwygEditor.php
@@ -56,8 +56,11 @@ class XmlFormFieldWYSIWYGEditor extends XmlFormField
      * @return string
      *
      */
-    public function render($value, $owner = null)
+    public function render($value = null, $owner = null)
     {
+        if ($value === null) {
+            $value = '';
+        }
         $value = ($value == '') ? '<br/>' : $value;
         $html = "<textArea class='tmceEditor' id='form[" . $this->name . "]' name='form[" . $this->name . "]' >" . htmlentities($value,
                 ENT_QUOTES, 'UTF-8') . "</textarea>";
diff --git a/gulliver/system/class.xmlform.php b/gulliver/system/class.xmlform.php
index 261aaddce..23a0b7059 100644
--- a/gulliver/system/class.xmlform.php
+++ b/gulliver/system/class.xmlform.php
@@ -384,8 +384,11 @@ class XmlFormField
      * @param string values
      * @return string
      */
-    public function renderGrid($values = array(), $owner = null, $onlyValue = false, $therow = -1)
+    public function renderGrid($values = null, $owner = null, $onlyValue = false, $therow = -1)
     {
+        if ($values === null) {
+            $values = [];
+        }
         $result = [];
         $r = 1;
         foreach ($values as $v) {
diff --git a/thirdparty/phing/ProjectComponent.php b/thirdparty/phing/ProjectComponent.php
index d8fc751e7..f85bad05f 100644
--- a/thirdparty/phing/ProjectComponent.php
+++ b/thirdparty/phing/ProjectComponent.php
@@ -44,7 +44,7 @@ abstract class ProjectComponent {
      *  @param    object    The reference to the current project
      *  @access   public
      */
-    function setProject($project) {
+    function setProject(Project $project) {
         $this->project = $project;
     }
 
diff --git a/thirdparty/phing/types/Mapper.php b/thirdparty/phing/types/Mapper.php
index a84d246e5..cbf9b4600 100644
--- a/thirdparty/phing/types/Mapper.php
+++ b/thirdparty/phing/types/Mapper.php
@@ -134,7 +134,7 @@ class Mapper extends DataType {
      *
      * You must not set any other attribute if you make it a reference.
      */
-    function setRefid($r) {
+    function setRefid(Reference $r) {
         if ($this->type !== null || $this->from !== null || $this->to !== null) {
             throw DataType::tooManyAttributes();
         }
diff --git a/workflow/engine/classes/Configurations.php b/workflow/engine/classes/Configurations.php
index b7b798749..2e1e49dae 100644
--- a/workflow/engine/classes/Configurations.php
+++ b/workflow/engine/classes/Configurations.php
@@ -18,7 +18,7 @@ class Configurations // extends Configuration
      *
      * @return void
      */
-    public function Configurations()
+    public function __construct()
     {
         $this->Configuration = new Configuration();
     }
diff --git a/workflow/engine/classes/Derivation.php b/workflow/engine/classes/Derivation.php
index f166e25b6..6214b8928 100644
--- a/workflow/engine/classes/Derivation.php
+++ b/workflow/engine/classes/Derivation.php
@@ -1740,22 +1740,33 @@ class Derivation
         return $aGrp;
     }
 
-    function checkReplacedByUser ($user)
+    /**
+     * Review the replaced by configuration
+     *
+     * @param string $user
+     *
+     * @return string
+     * @throws Exception
+    */
+    function checkReplacedByUser($user)
     {
-        if (is_string( $user )) {
-            $userInstance = UsersPeer::retrieveByPK( $user );
+        if (is_string($user)) {
+            $userInstance = UsersPeer::retrieveByPK($user);
         } else {
             $userInstance = $user;
         }
-        if (! is_object( $userInstance )) {
-            throw new Exception( "The user with the UID '$user' doesn't exist." );
+        if (!is_object($userInstance)) {
+            if (!is_string($user)) {
+                $user = gettype($user);
+            }
+            throw new Exception("The user with the UID '" . $user . "' doesn't exist.");
         }
         if ($userInstance->getUsrStatus() == 'ACTIVE') {
             return $userInstance->getUsrUid();
         } else {
-            $userReplace = trim( $userInstance->getUsrReplacedBy() );
+            $userReplace = trim($userInstance->getUsrReplacedBy());
             if ($userReplace != '') {
-                return $this->checkReplacedByUser( UsersPeer::retrieveByPK( $userReplace ) );
+                return $this->checkReplacedByUser(UsersPeer::retrieveByPK($userReplace));
             } else {
                 return '';
             }
diff --git a/workflow/engine/classes/ProcessMap.php b/workflow/engine/classes/ProcessMap.php
index 9746caae0..86662b68d 100644
--- a/workflow/engine/classes/ProcessMap.php
+++ b/workflow/engine/classes/ProcessMap.php
@@ -2003,7 +2003,7 @@ class ProcessMap
         $oDataset = InputDocumentPeer::doSelectRS($oCriteria, Propel::getDbConnection('workflow_ro'));
         $oDataset->setFetchmode(ResultSet::FETCHMODE_ASSOC);
         $oDataset->next();
-        $inputDocArray = "";
+        $inputDocArray = [];
         $inputDocArray[] = array('INP_DOC_UID' => 'char', 'PRO_UID' => 'char', 'INP_DOC_TITLE' => 'char', 'INP_DOC_DESCRIPTION' => 'char' );
         while ($aRow = $oDataset->getRow()) {
             if (($aRow['INP_DOC_TITLE'] == null) || ($aRow['INP_DOC_TITLE'] == "")) {
@@ -2071,11 +2071,11 @@ class ProcessMap
         $oDataset = TriggersPeer::doSelectRS($oCriteria);
         $oDataset->setFetchmode(ResultSet::FETCHMODE_ASSOC);
         $oDataset->next();
-        $triggersArray = "";
+        $triggersArray = [];
         $triggersArray[] = array('TRI_UID' => 'char', 'PRO_UID' => 'char', 'TRI_TITLE' => 'char', 'TRI_DESCRIPTION' => 'char');
         while ($aRow = $oDataset->getRow()) {
             if (($aRow['TRI_TITLE'] == null) || ($aRow['TRI_TITLE'] == "")) {
-                // There is no transaltion for this Trigger name, try to get/regenerate the label
+                // There is no translation for this Trigger name, try to get/regenerate the label
                 $triggerO = new Triggers();
                 $triggerObj = $triggerO->load($aRow['TRI_UID']);
                 $aRow['TRI_TITLE'] = $triggerObj['TRI_TITLE'];
diff --git a/workflow/engine/classes/PropelTable.php b/workflow/engine/classes/PropelTable.php
index 9d2c270f8..08da868cc 100644
--- a/workflow/engine/classes/PropelTable.php
+++ b/workflow/engine/classes/PropelTable.php
@@ -261,7 +261,8 @@ class PropelTable
         $totalWidth = 0;
         foreach ($this->fields as $r => $rval) {
             if ($this->style[$r]['showInTable'] != '0') {
-                $totalWidth += $this->style[$r]['colWidth'];
+                $colWidth = empty($this->style[$r]['colWidth']) ? 0 : $this->style[$r]['colWidth'];
+                $totalWidth += $colWidth;
             }
         }
         $this->totalWidth = $totalWidth;
@@ -327,7 +328,8 @@ class PropelTable
                     $this->tpl->assign("width", $this->style[$r]['colWidth']);
                 }
                 if (isset($this->style[$r]['colWidth'])) {
-                    $this->tpl->assign("widthPercent", ($this->style[$r]['colWidth'] * 100 / $this->totalWidth) . "%");
+                    $colWidth = empty($this->style[$r]['colWidth']) ? 1 : $this->style[$r]['colWidth'];
+                    $this->tpl->assign("widthPercent", ($colWidth * 100 / $this->totalWidth) . "%");
                     //Hook for special skin with RTL languajes
                 }
                 if (defined('SYS_LANG_DIRECTION') && SYS_LANG_DIRECTION == 'R') {
diff --git a/workflow/engine/classes/XmlFormFieldTextPm.php b/workflow/engine/classes/XmlFormFieldTextPm.php
index 20ca0d411..f3c5fcd99 100644
--- a/workflow/engine/classes/XmlFormFieldTextPm.php
+++ b/workflow/engine/classes/XmlFormFieldTextPm.php
@@ -75,7 +75,7 @@ class XmlFormFieldTextPm extends XmlFormFieldSimpleText
      * @param eter string owner
      * @return string
      */
-    public function renderGrid($values = array(), $owner)
+    public function renderGrid($values = array(), $owner = null, $paramDummy3 = null, $paramDummy4 = null)
     {
         $result = array();
         $r = 1;
diff --git a/workflow/engine/classes/XmlFormFieldTextareaPm.php b/workflow/engine/classes/XmlFormFieldTextareaPm.php
index 25b94be5c..75e42e1ca 100644
--- a/workflow/engine/classes/XmlFormFieldTextareaPm.php
+++ b/workflow/engine/classes/XmlFormFieldTextareaPm.php
@@ -23,7 +23,7 @@ class XmlFormFieldTextareaPm extends XmlFormField
      * @param eter string owner
      * @return string
      */
-    public function render($value = null, $owner)
+    public function render($value = null, $owner = null)
     {
         if ($this->showVars == 1) {
             $this->process = G::replaceDataField($this->process, $owner->values);
@@ -53,8 +53,11 @@ class XmlFormFieldTextareaPm extends XmlFormField
      * @param eter string owner
      * @return string
      */
-    public function renderGrid($owner, $values = null)
+    public function renderGrid($owner = null, $values = null, $onlyValue = false, $therow = -1)
     {
+        if ($values === null) {
+            $values = [];
+        }
         $result = array();
         $r = 1;
         foreach ($values as $v) {
diff --git a/workflow/engine/classes/model/AppAssignSelfServiceValue.php b/workflow/engine/classes/model/AppAssignSelfServiceValue.php
index e5e41f4a7..a2c48430c 100644
--- a/workflow/engine/classes/model/AppAssignSelfServiceValue.php
+++ b/workflow/engine/classes/model/AppAssignSelfServiceValue.php
@@ -10,7 +10,7 @@ class AppAssignSelfServiceValue extends BaseAppAssignSelfServiceValue
      *
      * return void
      */
-    public function create($applicationUid, $delIndex, array $arrayData, $dataVariable)
+    public function create($applicationUid, $delIndex, array $arrayData, $dataVariable = [])
     {
         try {
             $cnn = Propel::getConnection(AppAssignSelfServiceValuePeer::DATABASE_NAME);
diff --git a/workflow/engine/classes/model/Language.php b/workflow/engine/classes/model/Language.php
index 1785e8759..e0457eddc 100644
--- a/workflow/engine/classes/model/Language.php
+++ b/workflow/engine/classes/model/Language.php
@@ -571,7 +571,8 @@ class Language extends BaseLanguage
         $buildhash = file_get_contents($buildhash);
 
         $michelangeloFE = PATH_HTML . "lib/js";
-        $pathFileMafe = array_pop(glob($michelangeloFE . '/' . '*' . $buildhash . '*', GLOB_BRACE));
+        $array = glob($michelangeloFE . '/' . '*' . $buildhash . '*', GLOB_BRACE);
+        $pathFileMafe = array_pop($array);
         if (file_exists($pathFileMafe) && is_readable($pathFileMafe)) {
             $labels = self::readLabelsDirectory($pathFileMafe, true);
         }
diff --git a/workflow/engine/controllers/InstallerModule.php b/workflow/engine/controllers/InstallerModule.php
index fb569e0a9..f50aace55 100644
--- a/workflow/engine/controllers/InstallerModule.php
+++ b/workflow/engine/controllers/InstallerModule.php
@@ -798,7 +798,7 @@ class InstallerModule extends Controller
 
             // CREATE databases wf_workflow
             DB::connection(self::CONNECTION_TEST_INSTALL)
-                ->statement("CREATE DATABASE IF NOT EXISTS $wf");
+                ->statement("CREATE DATABASE IF NOT EXISTS $wf DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci");
 
             self::setNewConnection(self::CONNECTION_INSTALL, $db_hostname, $db_username, $db_password, $wf, $db_port);
 
@@ -926,7 +926,7 @@ class InstallerModule extends Controller
                 ->update([
                     'USR_USERNAME' => $adminUsername,
                     'USR_LASTNAME' => $adminUsername,
-                    'USR_PASSWORD' => Bootstrap::hashPassword($adminPassword, Bootstrap::hashBcrypt)
+                    'USR_PASSWORD' => G::encryptHash($adminPassword)
                 ]);
 
             DB::connection(self::CONNECTION_INSTALL)
@@ -935,7 +935,7 @@ class InstallerModule extends Controller
                 ->update([
                     'USR_USERNAME' => $adminUsername,
                     'USR_LASTNAME' => $adminUsername,
-                    'USR_PASSWORD' => Bootstrap::hashPassword($adminPassword, Bootstrap::hashBcrypt)
+                    'USR_PASSWORD' => G::encryptHash($adminPassword)
                 ]);
             // Write the paths_installed.php file (contains all the information configured so far)
             if (!file_exists(FILE_PATHS_INSTALLED)) {
diff --git a/workflow/engine/methods/authSources/authSourcesSynchronizeAjax.php b/workflow/engine/methods/authSources/authSourcesSynchronizeAjax.php
index 886190c3d..50179b154 100644
--- a/workflow/engine/methods/authSources/authSourcesSynchronizeAjax.php
+++ b/workflow/engine/methods/authSources/authSourcesSynchronizeAjax.php
@@ -450,7 +450,7 @@ function custom_ldap_explode_dn($dn)
     unset($result["count"]);
 
     foreach ($result as $key => $value) {
-        $result[$key] = addcslashes(preg_replace("/\\\([0-9A-Fa-f]{2})/", function ($m) {
+        $result[$key] = addcslashes(preg_replace_callback("/\\\([0-9A-Fa-f]{2})/", function ($m) {
             return chr(hexdec($m[1]));
         }, $value), '<>,"');
     }
diff --git a/workflow/engine/methods/groups/groups_Ajax.php b/workflow/engine/methods/groups/groups_Ajax.php
index 4b227b6dd..30801d56f 100644
--- a/workflow/engine/methods/groups/groups_Ajax.php
+++ b/workflow/engine/methods/groups/groups_Ajax.php
@@ -160,7 +160,8 @@ switch ($_POST['action']) {
         $start = isset($_REQUEST['start']) ? $_REQUEST['start'] : 0;
         $limit = isset($_REQUEST['limit']) ? $_REQUEST['limit'] : $limit_size;
         $filter = isset($_REQUEST['textFilter']) ? $_REQUEST['textFilter'] : '';
-        $groupUid = $inputFilter->quoteSmart($_REQUEST['gUID'], Propel::getConnection("workflow")->getResource());
+        $connection = Propel::getConnection("workflow")->getResource();
+        $groupUid = $inputFilter->quoteSmart($_REQUEST['gUID'], $connection);
 
         $groupUsers = new GroupUser();
         $type = $_POST['action'] === 'assignedMembers' ? 'USERS' : 'AVAILABLE-USERS';
diff --git a/workflow/engine/methods/processes/consolidated.php b/workflow/engine/methods/processes/consolidated.php
index ac7840550..e5ef62ea5 100644
--- a/workflow/engine/methods/processes/consolidated.php
+++ b/workflow/engine/methods/processes/consolidated.php
@@ -2,7 +2,7 @@
 
 class AdditionalTablesConsolidated extends AdditionalTables
 {
-    public function createPropelClasses($sTableName, $sClassName, $aFields, $sAddTabUid)
+    public function createPropelClasses($sTableName, $sClassName, $aFields, $sAddTabUid, $connection = 'workflow')
     {
         try {
             $aTypes = array('VARCHAR' => 'string',
diff --git a/workflow/engine/methods/processes/processes_Import_Ajax.php b/workflow/engine/methods/processes/processes_Import_Ajax.php
index d4e7d84a1..870db04eb 100644
--- a/workflow/engine/methods/processes/processes_Import_Ajax.php
+++ b/workflow/engine/methods/processes/processes_Import_Ajax.php
@@ -388,8 +388,9 @@ if ($action == "uploadFileNewProcess") {
             $allowedExtensions = array ($processFileType
             );
             $allowedExtensions = array ('pm');
-            if (! in_array( end( explode( ".", $_FILES['PROCESS_FILENAME']['name'] ) ), $allowedExtensions )) {
-                throw new Exception( G::LoadTranslation( "ID_FILE_UPLOAD_INCORRECT_EXTENSION" ) );
+            $explode = explode(".", $_FILES['PROCESS_FILENAME']['name']);
+            if (!in_array(end($explode), $allowedExtensions)) {
+                throw new Exception(G::LoadTranslation("ID_FILE_UPLOAD_INCORRECT_EXTENSION"));
             }
         }
 
diff --git a/workflow/engine/methods/triggers/triggers_Delete.php b/workflow/engine/methods/triggers/triggers_Delete.php
index bfc1f4def..1d9fce998 100644
--- a/workflow/engine/methods/triggers/triggers_Delete.php
+++ b/workflow/engine/methods/triggers/triggers_Delete.php
@@ -35,6 +35,7 @@ try {
     $oStepTrigger = new StepTrigger();
     $oStepTrigger->removeTrigger( $_POST['TRI_UID'] );
 
+    $result = new stdClass();
     $result->success = true;
     $result->msg = G::LoadTranslation( 'ID_TRIGGERS_REMOVED' );
 
diff --git a/workflow/engine/src/ProcessMaker/Core/Installer.php b/workflow/engine/src/ProcessMaker/Core/Installer.php
index 896de30b4..cd7ef9806 100644
--- a/workflow/engine/src/ProcessMaker/Core/Installer.php
+++ b/workflow/engine/src/ProcessMaker/Core/Installer.php
@@ -513,7 +513,7 @@ class Installer
             ->where('USR_UID', '00000000000000000000000000000001')
             ->update([
                 'USR_USERNAME' => $this->options['admin']['username'],
-                'USR_PASSWORD' => Bootstrap::hashPassword($this->options['admin']['password'], Bootstrap::hashBcrypt)
+                'USR_PASSWORD' => G::encryptHash($this->options['admin']['password'])
             ]);
 
         DB::connection(self::CONNECTION_INSTALL)
@@ -521,7 +521,7 @@ class Installer
             ->where('USR_UID', '00000000000000000000000000000001')
             ->update([
                 'USR_USERNAME' => $this->options['admin']['username'],
-                'USR_PASSWORD' => Bootstrap::hashPassword($this->options['admin']['password'], Bootstrap::hashBcrypt)
+                'USR_PASSWORD' => G::encryptHash($this->options['admin']['password'])
             ]);
     }