Invalid Function Warning

I have duplicated a site onto my server, to get it up and running before I switch the nameservers over. Right at the top and the bottom of the site I now get the following warning;

Warning: call_user_func_array() expects parameter 1 to be a valid callback, function ‘wpa54064_inspect_scripts’ not found or invalid function name in /home/droyglas/public_html/wp-includes/plugin.php on line 496

The weird thing is this warning is not on the original site (http://www.droylsdenglass.co.uk) only on the version on my server.

Hope someone can help as I really want to transfer the hosting of this site ASAP