Erros since moving hosts

[bashy]

Hi guys...

Since moving hosts i get
Fatal error: Cannot redeclare class db_driver in /home/bashy/public_html/mkportal/include/mk_mySQL.php on line 7

Any help would be appreciated please?

Also since updating to latest version of arcade, my style manager is asking me if i want to revert or whatever to ARCADE....

What do i do with this 1 please?

Also none of the scores save anymore :(
Please can someone help me?