Problem with LC 2.1.1

Hi, recently I have bought and installed this addon on LC 2.1.1.
After instalation, I'm getting the following error:

Warning: VQModObject::applyMod(customer_groups.xml) - Search not found in "": admin_/customers.app/customers.inc.php(4) [SKIPPED] in ~/vqmod/vqmod.php (Line 581)

Addon does seem to work anyway, but surelly not in full.
Is addon compatible with latest version of LC?

Thank you,
Nejc

(Thread moved to Customer Groups)

The add-on has been updated for LiteCart 2.1.1. See the new download on the add-on page.