its a vps running CentOS 6 with Parallels Plesk Panel 11.5 (64-bit)
the log is as follows -
[Wed May 28 19:20:04 2014] [warn] RSA server certificate CommonName (CN) `Parallels Panel' does NOT match server name!?
[Wed May 28 19:20:04 2014] [warn] RSA server certificate CommonName (CN) `Parallels Panel' does NOT match server name!?
[Wed May 28 19:23:52 2014] [warn] [client 188.29.27.135] mod_fcgid: stderr: PHP Fatal error: Call to a member function write() on a non-object in url on line 53, referer: url?rt=install&runlevel=1
[Wed May 28 19:26:31 2014] [warn] RSA server certificate CommonName (CN) `Parallels Panel' does NOT match server name!?
[Wed May 28 19:26:31 2014] [warn] RSA server certificate CommonName (CN) `Parallels Panel' does NOT match server name!?
[Wed May 28 19:40:17 2014] [warn] [client 188.29.27.135] mod_fcgid: stderr: PHP Fatal error: Call to a member function write() on a non-object inurl on line 53, referer: url?rt=install&runlevel=1