XF 1.4 Cannot reply to a conversation with a user...different issue..

[Jimmi]

Recently just updated to 1.4.whateverbuildwas released latest...

Im starting to see issues when replying to users
The following error occurred:
Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator, webmaster@domain.... 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.

Also some of the PM´s are not even avalible. Any idea whats up?

 

[Paul B]

You will need to look at the server error log to see what is causing it.
Your host will be able to help if you don't know where that is.

You could try disabling add-ons and see if the problem stops.

 

[TPerry]

Also, you say you recently updated... updated from what version to current. If 1.1/1.2 series, did you follow the upgrade guide?

 

[Jimmi]

1.3.x til 1.4.3