Category Selection Broken in Products

I added a few products last week and everything worked fine. Today I attempted to enter in a new product and when I clicked to select a Category I was taken to a new, unstyled page with just my Category options.

When I tried to select an Category here and clicked Save and Close I received this error:

Fatal error[color=#000000][font=Tahoma, Arial, Verdana,]: Cannot use string offset as an array in [/font][/color]/home/becopres/public_html/var/cache/templates/admin/%%E4^E42^E4252AD1%%mainbox.tpl.php[color=#000000][font=Tahoma, Arial, Verdana,] on line [/font][/color]5

No changes had been made to the mainbox.tpl. What happened and how do I fix it??

clear your cache and browser cache

and if needs be download and then remove that file manually via ftp it will be re created automatically


Hi John,

I tried clear all caches and removing the file but I'm still getting the error.


Hello Anthony,

Thank you for your message.

I am sorry to hear that you have experienced this issue. The problem requires examination on your server. Please contact us via Customer Help Desk and provide temporary access to your server by clicking on the Add record link on the Access information page of your Help Desk account so that we could examine the issue.

Thank you.

Pavel Zyukin

CS-Cart Support team