500 Internal Server Error

[محروم.كوم]

Hello,

I'm running vbulletin 3.8.1,
I have a problem when I try to delete, move a thread or even upload an attachment !
I get this error :
Code:
Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator, [email protected] and inform them of the time the error occurred, and anything you might have done that may have caused the error.

More information about this error may be available in the server error log.


Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.
I tried to disable the plugins/hooks, but the problem persist

please help me

thanks __DEFINE_LIKE_SHARE__