This is the error log file of the site in question:
[warn] (104)Connection reset by peer:mod_fcgid: read data from fastcgi server error.
[error] [client 188.8.131.52] Premature end of script headers: index.php
[warn] mod_fcgid: read data timeout in 40 seconds
[error] [client 184.108.40.206] Directory index forbidden by Options directive