Once I got through the password, I did see the application error. At the moment, there are no issues with any services, so I'm going to assume that there is an error in your program somewhere.
I couldn't find your logs, so please go to your website panel and go to Settings > General and turn on
Show Errors. That way maybe I can see what's going on. Also, if you can implement some code that will create a log, could you do that?