I was adding a new theme to my site, and all of a sudden, it crashed. Then, I went and visited my website (www.mahyarlaw.com) and I saw the 500 Internal Server Error. I found out that the only way to fix it was to log in to the hosting provider and delete the plugins. Unfortunately, I do not have access to my hosting provider, Rackspace, because I do not know the password. Is there any way of fixing this error without logging in to my hosting provider?