Thread:Project:Support desk/Error upgrading from 1.21.1 to 1.23.2

When I attempted to update my mediawiki from 1.21.2 to 1.23.2 I got the following error: <!DOCTYPE html> Internal error - MediaWiki body { font-family: sans-serif; margin: 0; padding: 0.5em 2em; } [eaf17141] /w/mw-config/?page=Upgrade  Exception from line 182 of /home/wrlimgzl/public_html/w/includes/Hooks.php: Invalid callback in hooks for LoadExtensionSchemaUpdates

Backtrace: #0 /home/wrlimgzl/public_html/w/includes/GlobalFunctions.php(4004): Hooks::run(string, array, NULL)


 * 1) 1 /home/wrlimgzl/public_html/w/includes/installer/DatabaseUpdater.php(116): wfRunHooks(string, array)


 * 1) 2 /home/wrlimgzl/public_html/w/includes/installer/DatabaseUpdater.php(170): DatabaseUpdater-&gt;__construct(DatabaseMysqli, boolean, NULL)


 * 1) 3 /home/wrlimgzl/public_html/w/includes/installer/DatabaseInstaller.php(278): DatabaseUpdater::newForDB(DatabaseMysqli)


 * 1) 4 /home/wrlimgzl/public_html/w/includes/installer/WebInstallerPage.php(646): DatabaseInstaller-&gt;doUpgrade


 * 1) 5 /home/wrlimgzl/public_html/w/includes/installer/WebInstaller.php(283): WebInstaller_Upgrade-&gt;execute


 * 1) 6 /home/wrlimgzl/public_html/w/mw-config/index.php(63): WebInstaller-&gt;execute(array)


 * 1) 7 /home/wrlimgzl/public_html/w/mw-config/index.php(31): wfInstallerMain

Any suggestions?
 * 1) 8 {main}