HTTP ERROR 500

Greetings,

I inherited this website for our organization about six months ago with no information except for credentials to log in as site administrator. I attempted to go to site to make an update only to find “This page isn’t working/unable to handle this request/http error 500 message”.

I am unable to login and the research I have done has been, to be honest, above my ability level to resolve the issue. Again, I know very little history about the site and do not know who is the host.

Any assistance is GREATLY appreciated.

Thank you!

The page I need help with: [log in to see the link]