Mostof my sites are working fine. But one of the sites throughs this error
[proxy_fcgi:error] [pid 107694:tid 107699] [client 46.243.3.42:58152] AH01071: Got error 'Primary script unknown'
If I reboot server, sites works again for few hours
If I create a Custom WebServers Configuration and delete that, site works again.
Please suggest