Timezone Error when upgrading to 4.2.2

[Hendy]

I have uploaded all of the files but I am just getting a page of errors on the forum home page so I thought I should ask the question before doing the upgrade.

You can see the errors here

http://forum.shoppingtelly.com/forum/

Do I go ahead and upgrade or do I need to do something first?

[Emath]

see http://www.vbulletin.com/forum/forum...n-issues-4-2-2