Edit messages in adv guestbook not working

I try to edit messages and nothing happens.
HELP

But I CAN delete messages. Just not able to edit

Will somebody help me here. Is this a flaw in the design or should it really be working. Is there a fix if it is a design error.

HELP me.

Need more info as to "not working". You cannot click the link? Cannot save the edits?

I have this problem too, in 2.4.3.

When I try to edit any message I get the following screen:

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

I reinstalled all files and still get the same message. Any idea why I cannot edit my messages?

Hmm might be worth looking at your servers error log for more details.