Fatal error: Uncaught Error: Class "OC_JSON" not found in /home/tzuovhm/tzuovhm/nextcloud/apps/user_ldap/ajax/deleteConfiguration.php:9 Stack trace: #0 {main} thrown in /home/tzuovhm/tzuovhm/nextcloud/apps/user_ldap/ajax/deleteConfiguration.php on line 9