I received the following error after clicking the upgrade button on my concrete 5 site. Any suggestions, whole site not responding. I did a full site backup and a Concrete backup before starting, but would prefer to fix it as I need the new version for a component.

Fatal error: Call to undefined method AddBlockBlockTypePermissionAccess::isPermissionKeyInUse() in /home7/bereanb5/public_html/updates/concrete5.6.1.2_updater/concrete/helpers/concrete/upgrade/version_560.php on line 284

I now get a page forbidden error message when you try to go to any page in the site and I can no longer login to Concrete.