myOpenID login error

I tried several times to login with myOpenID: however I'm getting an error:

Application error

The OpenStreetMap server encountered an unexpected condition that prevented it from fulfilling the request (HTTP 500)

Feel free to contact the OpenStreetMap community if your problem persists. Make a note of the exact URL / post data of your request.

This may be a problem in our Ruby On Rails code. 500 occurs with exceptions thrown outside of an action (like in Dispatcher setups or broken Ruby code)

Is there a solution?