When i try to change the username of a member or try to sync to moodle i get the following error: COM_JOOMDLE_WEB_SERVICES_ERROR: array_key_exists(): Argument #2 ($array) must be of type array, null given
How can i fix that?
The error message COM_JOOMDLE_WEB_SERVICES_ERROR indicates that there is problem with JOOMDLE. You should contact the developer of that extension and ask him to fix it
