Thread:Project:Support desk/Installation Extension ConfirmAccount/reply (4)

Looks like the installer tries to use mysql4 if there are tables with the collation latin1 in the db.

Maybe try updating without the extension like you just did, verify mysql4 is no where in your LocalSettings.php, then re-add the ConfirmAccount extension, and run the command line update.php upgrade script, and see if that works.