User tracking not working: blank site

I upgraded my site yesterday. Everything was running smoothly. I went to check on a product I added early this afternoon (admin working fine) and I got a blank page.

I installed the debugging and got this error:

PHP Fatal error: Call to undefined function zen_update_user_tracking() in /includes/templates/custom/common/tpl_footer.php on line 67

I went in an retyped the text into the tpl_footer as directed by the install directions but the error keeps showing. The whole site is non accessable except the admin side. I went in and "dropped" the user tracking table but that didn't work either.

Anything I can do besides re-upgrade the site?

Got it figured out. I "uninstalled" the mod by removing all the files and dropping the table. Then I ran the debugger again and found a weird t-spring error in english.php so I replaced that with my backup version and now site is up.