Sites Broken After Server Restore

After a server crash, we restored from the backups, however when we attempt to access the site we get this set or errors;

Deprecated: Assigning the return value of new by reference is deprecated in C:\wamp\www\JustLeftPub\wp-settings.php on line 520

Deprecated: Assigning the return value of new by reference is deprecated in C:\wamp\www\JustLeftPub\wp-settings.php on line 535

Deprecated: Assigning the return value of new by reference is deprecated in C:\wamp\www\JustLeftPub\wp-settings.php on line 542

Deprecated: Assigning the return value of new by reference is deprecated in C:\wamp\www\JustLeftPub\wp-settings.php on line 578

Deprecated: Function set_magic_quotes_runtime() is deprecated in C:\wamp\www\JustLeftPub\wp-settings.php on line 18

Any suggestions on how to recover the sites?

Thanks!