Categories Fatal Error in Admin area Can some one please help

[touchclothing]

this is what is says when I click on catalog/catagories -

Fatal error: Call to undefined function: zen_hide_session_id() in /chroot/home/irfourse/ir47.com/html/kickass/admin/includes/modules/category_product_listing.php on line 62



Can someone please help me fix this. this just started.

[Ajeh]

That should be located in the file:
/admin/includes/functions/html_output.php

Did you overwrite that file with an add-on? Or did you do an upgrade and not upgrade all files?

[touchclothing]

no i really did nothing I just logged in on day and thats what is said. How can I fix it?

[Ajeh]

I would start by reloading the original file for:
/admin/includes/functions/html_output.php

Sounds like it is overwritten or damaged or the wrong version or something ...