Error 1054 editing awocoupon component

Hello.
I bought awocoupomPro 2.5.7
After installation, when i try to open component/awocoupon, i get a 1054 error, followed by
1054 Unknown column 'estore' in 'where clause'
I am using joomla 3.7.1 and VM 3.2.2; php 7.0.16
Any suggestion?

Hello,

Looks like the database did not get updated.  Where you upgrading from the free version?  Do you have coupons already you cannot loose?

This is the first time i have used awocoupon.
No upgrade from free versions.
I have no coupons in place done with awocoupon.

Ok, can you try uninstalling it and then installing it again?

Wow.
 Just uninstalled and installed it again. It seems OK.
But there is a "Invalid License" warning.

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Never mind.
 All set and running.

Ok, that is fine.

You can get your license from this page:
https://awodev.com/me/subscriptions