FEAT #5573 add logs on sql error

core/class/class_db_pdo.php

@@ -349,6 +349,9 @@ class Database extends functions
                         $_SESSION['error'] .= $PDOException->getTraceAsString();
                         //echo $queryString;
                         //var_export($parameters);
+                        $file = fopen('queries_error.log', a);
+                        fwrite($file, '[' . date('Y-m-d H:i:s') . '] ' . $queryString . PHP_EOL);
+                        fclose($file);
                     }
                     throw $PDOException;
                 }