suspendAccount - disable users

api/KerioWhmcs.php

@@ -447,7 +447,7 @@ class KerioWhmcs extends KerioConnectApi {
 	 */
 	function modifyUser($userId, $attr) {
 		$params = array(
-			'userIds' => $userId,
+			'userIds' => [ $userId ],
 			'pattern' => $attr
 		);