Events Module and Upgrading 7.0.9 to 7.1

I am trying to help someone that had an upgrade to end with an error.

The error was a sql error that the query returned two rows in the top menu table.

SET @iMenuEventsTop = (SELECT `ID` FROM `sys_menu_top` WHERE `Parent` = 0 AND `Type` = 'top' AND `Name` = 'Events');

My question is, is there any known problems ungrading with the Events module?  I am wondering if we uninstall the events module we can then continue with the upgrade and reinstall the events module afterwards.

I may have been chasing the wrong rabbit down the wrong rabbit hole.  The site is using a template other than UNI.  Could this template be causing the problem with the Events menu?

I don't see how. The error is a database error and i do not know of any templates that add additional records to the database.

Besides. If they follow proper update procedures they should be switched back to the default UNI template before doing the update anyway because their current template will not be compatible with dolphin 7.1

Yes, but who knows what TMD did.  I will be doing the update this time.  Still wondering why there was a database error with the upgrade; as far as I can tell, each record in the database was legitimate.  Perhaps the upgrade script is not checking on enough fields; if this was caused by the upgrade.