diff --git a/workflow/engine/controllers/pmTablesProxy.php b/workflow/engine/controllers/pmTablesProxy.php
index b4b32bb9f..2cb3b38ff 100755
--- a/workflow/engine/controllers/pmTablesProxy.php
+++ b/workflow/engine/controllers/pmTablesProxy.php
@@ -506,15 +506,19 @@ class pmTablesProxy extends HttpProxyController
     
     $primaryKeys = $additionalTables->getPrimaryKeys();
 
-    foreach ($result['rows'] as $i => $row) {
-      $primaryKeysValues = array();
-      foreach ($primaryKeys as $key) {
-        $primaryKeysValues[] = isset($row[$key['FLD_NAME']]) ? $row[$key['FLD_NAME']] : '';
+    if ($result) {
+      foreach ($result['rows'] as $i => $row) {
+        $primaryKeysValues = array();
+        foreach ($primaryKeys as $key) {
+          $primaryKeysValues[] = isset($row[$key['FLD_NAME']]) ? $row[$key['FLD_NAME']] : '';
+        }
+  
+        $result['rows'][$i]['__index__'] = G::encrypt(implode('-', $primaryKeysValues), 'pmtable');
       }
-
-      $result['rows'][$i]['__index__'] = G::encrypt(implode('-', $primaryKeysValues), 'pmtable');
+    } 
+    else {
+      $result['rows'] = array();
     }
-
     return $result;
   }
 
diff --git a/workflow/engine/templates/pmTables/data.js b/workflow/engine/templates/pmTables/data.js
index 3f5e9343f..4b55b8df5 100755
--- a/workflow/engine/templates/pmTables/data.js
+++ b/workflow/engine/templates/pmTables/data.js
@@ -15,6 +15,7 @@ var smodel;
 var infoGrid;
 var _fields;
 var isReport;
+var editor;
 
 Ext.onReady(function(){
 
@@ -141,7 +142,9 @@ Ext.onReady(function(){
         afteredit : {
           fn:function(rowEditor, obj, data, rowIndex ){
             if (data.phantom === true) {
-              store.reload(); // <-- (just for old pmtables class engine) only if it is an insert 
+              setTimeout(function(){
+                store.reload();
+              }, 1100); // <-- (just for old pmtables class engine) only if it is an insert 
             }
           }
         }
@@ -325,7 +328,7 @@ DoNothing = function(){};
 var props = function(){};
 
 NewPMTableRow = function(){
-  if (editor.editing) {
+  if (!editor || editor.editing) {
     return false;
   }
   var PMRow = infoGrid.getStore().recordType;
diff --git a/workflow/engine/templates/pmTables/edit.js b/workflow/engine/templates/pmTables/edit.js
index b5bc9adf2..fca89b3c8 100755
--- a/workflow/engine/templates/pmTables/edit.js
+++ b/workflow/engine/templates/pmTables/edit.js
@@ -662,6 +662,11 @@ function createReportTable()
       PMExt.error(_('ID_ERROR'),_('ID_PMTABLES_ALERT1') + ' <b>' + row.data['field_name']+'</b>');
       return false;
     }
+    
+    if (row.data['field_name'] == 'DESC') {
+      PMExt.error(_('ID_ERROR'), 'The word "DESC" is reserved by the database engine please set another one.');
+      return false;
+    }
 
     // validate that fieldname is not empty
     if(row.data['field_name'].trim() == '') {