Pull a fresh copy of Moodle and install on mssql (you can use the Moodle docker .) Verify the install runs successfully. Go to the xmldb page Load the 'admin/tool/usertours/db' schema and click edit. Click tool_usertours_tours Click the 'enabled' column to bring up the edit form. Change the default from 0 to 1 and click 'Change'. Now, above the table fields list, click the 'View php code' link. Copy that code somewhere Now, edit admin/tool/usertours/version.php and bump the version number by 1 and copy that somewhere too. Now, edit admin/tool/usertours/db/upgrade.php and past the upgrade code below the existing steps, swapping in the new (bumped) version number. Paste "$dbman = $DB->get_manager();" at the start of that conditional so we can use $dbman. Now, hit the admin setting page of Moodle, and you should see an upgrade triggered for user tours. Run through the upgrade and confirm that it succeeds without any warnings/errors. Log out of your site and log back in again. Go to xmldb and load the user tours again. Click through to the tool_usertours_tours table again and edit the 'enabled' column. Confirm this column is listed with a default of '1' now.