diff --git a/op/op.Ajax.php b/op/op.Ajax.php
index 551749c14..dc79d8cce 100644
--- a/op/op.Ajax.php
+++ b/op/op.Ajax.php
@@ -849,8 +849,16 @@ switch($command) {
 				$controller->setParam('defaultaccessdocs', $settings->_defaultAccessDocs);
 
 				if(!$document = $controller()) {
+					$err = $controller->getErrorMsg();
+					if(is_string($err))
+						$errmsg = getMLText($err);
+					elseif(is_array($err)) {
+						$errmsg = getMLText($err[0], $err[1]);
+					} else {
+						$errmsg = $err;
+					}
 					header('Content-Type: application/json');
-					echo json_encode(array('success'=>false, 'message'=>getMLText($controller->getErrorMsg())));
+					echo json_encode(array('success'=>false, 'message'=>$errmsg));
 					exit;
 				} else {
 					// Send notification to subscribers of folder.