It should still work.
It looks like your credentials may have been updated with the update... maybe the mySQL server name or IP address has changed or database name?
You may need to update that manually in your Connections/PowerCMSConnection.php file to match the new server settings... that should correct the issues with line 533.
The other issues appear to be related to a security mod update on the server they may have done simultaneously. If you give me FTP access I can go in and make corrections to fix the other errors on line 59 or the globals file.