Got this error when reloading after uninstalled XMPP:
Reload failed because retrieve_conf encountered an error: 1
exit: 1
Whoops\Exception\ErrorException: unlink(/var/www/html/ucp/modules/Xmpp): Permission denied in file /var/www/html/admin/modules/ucp/Ucp.class.php on line 535
Stack trace:
1. Whoops\Exception\ErrorException->() /var/www/html/admin/modules/ucp/Ucp.class.php:535
2. Whoops\Run->handleError() :0
3. unlink() /var/www/html/admin/modules/ucp/Ucp.class.php:535
4. Ucp->generateUCP() /var/www/html/admin/modules/ucp/Ucp.class.php:510
5. Ucp->genConfig() /var/www/html/admin/libraries/BMO/FileHooks.class.php:97
6. FreePBX\FileHooks->processNewHooks() /var/www/html/admin/libraries/BMO/FileHooks.class.php:26
7. FreePBX\FileHooks->processFileHooks() /var/lib/asterisk/bin/retrieve_conf:823
D Rubie