What version you where using before ?

vshare_2.4_upgrade, you can only upgrade version 2.3 with this.

The error is because you have upgraded PHP files, but not MySQL database.

This is done by calling http://yourdomain/install/upgrade.php script.

This will only work if you are using vShare 2.3. If not you need to get vshare upgraded to next version first.

For example, if you are using vShare 2.1 Release: 20070625, you need to upgrade to

vShare 2.2 Release: 20070712

Then

vShare 2.3 release: 20070730

Then to

vShare 2.4 (23 Aug 2007)

Details of all vshare release available at

http://www.buyscripts.in/vshare-release.html