Admin wiped out after failed attemp to install item add modu

I had a developer wipe out the admin section of OpenCart after encountering problems installing a module. She by mistake deleted the language folder, while getting rid of the files she thought were created by the module install. She was able to get the admin back. But, now when you log on yoou get the following message -

Notice: Use of undefined constant VERSION - assumed 'VERSION' in /home/frosting/public_html/ocart/admin/controller/common/footer.php on line 6

Does anyone know of a quick fix before I start plowing through code?

Looks like she restored the wrong admin version. I assume this is 1.4.8b? The version is defined in the admin/index.php

Thanks for your help.