In our setup (Apache+PHP7+MariaDB+XF 1.5.11), the following error is thrown when trying to link a forum group to a Discord one. Bot is configured and connected to the server, all checks passed. This happens irregardless of which group is selected.
call_user_func_array() expects parameter 1 to be a valid callback, class 'NixFifty_Discord_DataWriter_UserGroup' does not have a method '_verifyServerGroupIds'
- XenForo_Application::handlePhpError() in XenForo/DataWriter.php at line 994
- XenForo_DataWriter->_runVerificationCallback() in XenForo/DataWriter.php at line 725
- XenForo_DataWriter->_isFieldValueValid() in XenForo/DataWriter.php at line 643
- XenForo_DataWriter->set() in NixFifty/Discord/ControllerAdmin/Discord.php at line 493
- NixFifty_Discord_ControllerAdmin_Discord->actionGroupsUserSave() in XenForo/FrontController.php at line 351
- XenForo_FrontController->dispatch() in XenForo/FrontController.php at line 134
- XenForo_FrontController->run() in */admin.php at line 13