MySQL error...
Which account switcher, made by who? Add URL to download it or show the code here.
See also this: http://community.mybb.com/thread-133701-...#pid967818 You probably deleted someone, that's what created errors.
Additionally, you may want to disable it and try another (if that's not the same) plugin: https://github.com/doylecc/EnhancedAccountSwitcher
See also this: http://community.mybb.com/thread-133701-...#pid967818 You probably deleted someone, that's what created errors.
Additionally, you may want to disable it and try another (if that's not the same) plugin: https://github.com/doylecc/EnhancedAccountSwitcher