Error message in shopping cart

Hello.

When i use automatic discounts i get this error mesaage in the shopping cart:

Warning: Invalid argument supplied for foreach() in
/home/www/mydomain/administrator/components/com_awocoupon/helpers/estore/virtuemart/couponhandler.php on line 179

I've updated from the free version to the pro version, but didn't uninstall the free version first. I've tried to uninstall and reinstall but still getting the same error. Everything else seems to work fine.

Awo coupon: 2.1.9
Virtumart : 2.0.20b
Joomla: 2.5.6

Regards,

Jimmi

Hello,

Here is the fix:
https://awodev.com/forum/awocoupon/help-section/awo-coupon-pro-error-message#comment-4880