Index: branches/RC/core/units/general/helpers/image_helper.php
===================================================================
diff -u -N -r9697 -r10156
--- branches/RC/core/units/general/helpers/image_helper.php	(.../image_helper.php)	(revision 9697)
+++ branches/RC/core/units/general/helpers/image_helper.php	(.../image_helper.php)	(revision 10156)
@@ -287,15 +287,19 @@
 				$image_path = $item_image['ThumbPath'];
 				if ($item_image['DefaultImg'] == 1 || $item_image['Name'] == 'main') {
 					// process primary image separately
-					$object->SetDBField('PrimaryImage', $image_path);
-					$object->SetOriginalField('PrimaryImage', $image_path);
-					$object->Fields['PrimaryImage']['original_field'] = $item_image['Name'];
+					if (array_key_exists('PrimaryImage', $object->Fields)) {
+						$object->SetDBField('PrimaryImage', $image_path);
+						$object->SetOriginalField('PrimaryImage', $image_path);
+						$object->Fields['PrimaryImage']['original_field'] = $item_image['Name'];
+					}
 					continue;
 				}
 
-				$object->SetDBField('Image'.$image_counter, $image_path);
-				$object->SetOriginalField('Image'.$image_counter, $image_path);
-				$object->Fields['Image'.$image_counter]['original_field'] = $item_image['Name'];
+				if (array_key_exists('Image'.$image_counter, $object->Fields)) {
+					$object->SetDBField('Image'.$image_counter, $image_path);
+					$object->SetOriginalField('Image'.$image_counter, $image_path);
+					$object->Fields['Image'.$image_counter]['original_field'] = $item_image['Name'];
+				}
 				$image_counter++;
 			}
 		}