diff --git a/workflow/engine/controllers/pmTablesProxy.php b/workflow/engine/controllers/pmTablesProxy.php
index cb74d2dbd..bd04469ca 100755
--- a/workflow/engine/controllers/pmTablesProxy.php
+++ b/workflow/engine/controllers/pmTablesProxy.php
@@ -1877,20 +1877,20 @@ class pmTablesProxy extends HttpProxyController
     public function getDynaformVariables($sProcessUID,$excludeFieldsList,$allowed = true)
     {
         $dynaformVariables = array();
-        $oC = new Criteria( 'workflow' );
-        $oC->addSelectColumn( DynaformPeer::DYN_CONTENT );
-        $oC->add( DynaformPeer::PRO_UID, $sProcessUID );
-        $oData = DynaformPeer::doSelectRS( $oC );
-        $oData->setFetchmode( ResultSet::FETCHMODE_ASSOC );
-        $oData->next();
-        while ($aRowd = $oData->getRow()) {
-            $dynaform = G::json_decode($aRowd['DYN_CONTENT'],true);
-            if(is_array($dynaform) && sizeof($dynaform)) {
-                $items = $dynaform['items'][0]['items'];
+        $oC = new Criteria( 'workflow' );
+        $oC->addSelectColumn( DynaformPeer::DYN_CONTENT );
+        $oC->add( DynaformPeer::PRO_UID, $sProcessUID );
+        $oData = DynaformPeer::doSelectRS( $oC );
+        $oData->setFetchmode( ResultSet::FETCHMODE_ASSOC );
+        $oData->next();
+        while ($aRowd = $oData->getRow()) {
+            $dynaform = G::json_decode($aRowd['DYN_CONTENT'],true);
+            if(is_array($dynaform) && sizeof($dynaform)) {
+                $items = $dynaform['items'][0]['items'];
                 foreach($items as $key => $val){
                     foreach($val as $column) {
                         if($allowed) {
-                            if(!in_array( $column['type'], $excludeFieldsList )){
+                            if(isset($column['type']) && !in_array( $column['type'], $excludeFieldsList )){
                                 if(array_key_exists('variable',$column)) {
                                     if($column['variable'] != "") {
                                         $dynaformVariables[] = $column['variable'];
@@ -1898,7 +1898,7 @@ class pmTablesProxy extends HttpProxyController
                                 }
                             }
                         } else {
-                            if(in_array( $column['type'], $excludeFieldsList )){
+                            if(isset($column['type']) && in_array( $column['type'], $excludeFieldsList )){
                                 if(array_key_exists('variable',$column)) {
                                     if($column['variable'] != "") {
                                         $dynaformVariables[] = $column['variable']; 
@@ -1907,9 +1907,9 @@ class pmTablesProxy extends HttpProxyController
                             }
                         }
                     }
-                }
-            }
-            $oData->next();
+                }
+            }
+            $oData->next();
         }
         return array_unique($dynaformVariables);    
     }