Index: db_connection.php
===================================================================
--- db_connection.php	(revision 14239)
+++ db_connection.php	(working copy)
@@ -773,8 +773,9 @@
 				}
 
 				$sql = strtoupper($type) . ' INTO `' . $table . '` (' . $fields_sql . ') VALUES (' . implode('),(', $value_sqls) . ')';
+				$value_sqls = Array (); // reset before query to prevent repeated call from error handler to insert 2 records instead of 1
+
 				$insert_result = $this->ChangeQuery($sql);
-				$value_sqls = Array ();
 			}
 
 			return $insert_result;