[utahraves]

Um those are bits that you have to remove from the admincp and the includes folder
If you look at that MySQL error, it says it CANNOT FIND THE COLUMNS - that means it was removed from the database and the bits you uploaded are trying to connect to columns that don't exist in the database.

Delete: admincp\mgc_cb_evo.php
Delete: clientscript\mgc_cb_evo folder
Delete: includes\mgc_cb_evo folder
Delete: includes\class_hook_mgccoding.php
Delete: includes\class_dm_mgccbchat.php
Delete: includes\xml\bitfield_mgc_cb_evo.xml
Delete: includes\xml\cpnav_mgc_cb_evo.xml
Delete: includes\xml\hooks_mgc_cb_evo.xml
Delete: includes\cron\mgc_cb_evo_digest.php
Delete: includes\cron\mgc_cb_evo_ban.php

Resolved.

Plus, if you referred to the readme attached with the product you wouldn't have such an issue.

In order to correctly uninstall the chatbox, please follow carefully the following instructions:

1. Remove the files of the chatbox in your forum folders.
2. Remove the modifications you have done to the other forum templates for the chatbox.
3. Uninstall the MGC Chatbox Evo product.
4. Uninstall is now finished.