Do you have a hosting environment that your using to test this while your helping others or all locally? If you would like to be setup with a free cpanel let me know. Thanks for showing how great the Bitcoin community can be by helping others.
Thanks but unless it comes with root access (where I can "play" with the server and probably crash it) it is not going to help. Personally I'm using dedicated server that is far away from "standard".
About the "unknown error" I can't help, your IP is probably banned so the PHP version does not matter.