500 Internal Server Error on Chopin.

[phentom00088]

I receive a "500 Internal Server Error" allways when I try to enter to http://rpdt.co.cc/, it's hosted on Chopin.

[descalzo]

Other accounts on Chopin seem to be working without the 500 errors.

Make sure all files have permissions set to 0644 and directories to 0755

.htaccess files that use mod_rewrite, you need to have
RewriteBase /
before any RewriteRule (replace / with /foo/ if the file is located in public_html/foo )