Follow on from previous discussion 'error after update and restore

I have 2 websites. one is the main one and the other is a subdomain. I tried to upgrade from to manually by coping the concrete folder to the updates folder as specified in your help then doing the upgrade using I got the error
Invalid "update.core" defined. Please remove it from /home/tambopc/public_html/application/config/update.php. i didn't know what to do so I did a restore from the server restore through cpanel. My main site still gets this error 'Invalid "update.core" defined. Please remove it from /home/tambopc/public_html/application/config/update.php.' and my subdomain site gets this error 'Class \Concrete\Core\Permission\Key\CategoryTreeNodeKey does not exist'. Both websites do not work now. any help would be greatly appreciated.

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tambopc replied on at Permalink Reply
Issue Solved. Websites up and running again after restoring from an earlier restore point. Will not be upgrading till I understand it more.