New Error When Trying To View Member Online List

[Mrs.CP23]

I have been running the arcade at my site since it was released and have had zero issues. Now yesterday when I tried to view my members online list I got this error message
Server Error

Undefined index: slug

1. XenForo_Application::handlePhpError() in Arcade/Route/Prefix/Arcade.php at line 56
2. Arcade_Route_Prefix_Arcade->buildLink() in XenForo/Link.php at line 331
3. XenForo_Link::_buildLink() in XenForo/Link.php at line 81
4. XenForo_Link::buildPublicLink() in Arcade/ControllerPublic/Arcade.php at line 38
5. Arcade_ControllerPublic_Arcade::getSessionActivityDetailsForList()
6. call_user_func() in XenForo/Model/Session.php at line 312
7. XenForo_Model_Session->addSessionActivityDetailsToList() in XenForo/ControllerPublic/Online.php at line 50
8. XenForo_ControllerPublic_Online->actionIndex() in XenForo/FrontController.php at line 310
9. XenForo_FrontController->dispatch() in XenForo/FrontController.php at line 132
10. XenForo_FrontController->run() in /home/content/88/10021788/html/index.php at line 13

I disabled the arcade and the error went away. I was able to turn the arcade back on after a few minutes and no more error.

Today it happened again. I shut the arcade off again and the error went away. I am unable to turn the arcade on again without the error message appearing when I try and view members online.

Edit: I am now able to turn the arcade on and no error again. This happened at exactly the same time yesterday and I have error messages in my server error log, also have some issues with the file health check regarding some of the arcade files.

 

[dodgeboard]

I have been running the arcade at my site since it was released and have had zero issues. Now yesterday when I tried to view my members online list I got this error message
Server Error

Undefined index: slug

1. XenForo_Application::handlePhpError() in Arcade/Route/Prefix/Arcade.php at line 56
2. Arcade_Route_Prefix_Arcade->buildLink() in XenForo/Link.php at line 331
3. XenForo_Link::_buildLink() in XenForo/Link.php at line 81
4. XenForo_Link::buildPublicLink() in Arcade/ControllerPublic/Arcade.php at line 38
5. Arcade_ControllerPublic_Arcade::getSessionActivityDetailsForList()
6. call_user_func() in XenForo/Model/Session.php at line 312
7. XenForo_Model_Session->addSessionActivityDetailsToList() in XenForo/ControllerPublic/Online.php at line 50
8. XenForo_ControllerPublic_Online->actionIndex() in XenForo/FrontController.php at line 310
9. XenForo_FrontController->dispatch() in XenForo/FrontController.php at line 132
10. XenForo_FrontController->run() in /home/content/88/10021788/html/index.php at line 13

I disabled the arcade and the error went away. I was able to turn the arcade back on after a few minutes and no more error.


Today it happened again. I shut the arcade off again and the error went away. I am unable to turn the arcade on again without the error message appearing when I try and view members online.

Edit: I am now able to turn the arcade on and no error again. This happened at exactly the same time yesterday and I have error messages in my server error log, also have some issues with the file health check regarding some of the arcade files.

You may be suffering from some database corruption. They way it comes and goes is unusual. You may want to run a database check through sypex (if you have it installed) or cpanel sql utils.