There are several reasons for 500 error. You may get this error message from your proxy server, also when your server send cookie with back response. What security mode you have used in your script ?

I have been having major problems with this DLL file crashing both server and clients of a game I'm working on and I can't for the life of me figure out what is causing it. Does anyone have any idea what this address location is or what in the DLL could cause something to crash? It seems to happen...