Log in with Facebook module error 2.1.0.1

https://www.opencart.com/index.php?rout ... c902c2fdca

Hi, the module above is what I tried to use. I got this error "Notice: Error: Could not load model /home1/meowmeo8/public_html/admin/model/sale/customer_group.php! in /home1/meowmeo8/public_html/vqmod/vqcache/vq2-system_engine_loader.php on line 63" when I try to "edit" the module.

Do you know how to fix it?

Thanks