You have a BusyTimeout error. The default time for a Busy Timeout is 600 seconds.
into your section of <IfModule mod_fcgid.c>
More info about fcgid Busy Timeout: http://httpd.apache.org/mod_fcgid/mo...gidbusytimeout
(the format above is new for the next Apache 2.3, in case you are using 2.2 you need to use Busy Timeout as described above)
Hope this helps,