XFileSharing Pro - 500 internal service error

[filesmart]

I'm getting a 500 Internal Service Error when you click Sign Up link or after uploading a file and link to that file.

I fix one thing something else breaks this is getting highly annoying. Also emailed support twice no reply. I had better stability with the free script I was using.

Worked before and now it's broke

http://www.filesmart.net