Customers can not post reviews with Wix Reviews app

Question:
I have Wix Reviews app instaled in my store. Everything worked fine, customers are getting requests for reviews. Lately we saw no reviews and we checked the app, tried to fulfill a review and we could’t do it. The app is saying that we don’t have enough priveleges to post… or something like that.

Product:
Wix Reviews on Wix Stores

What are you trying to achieve:
I’m trying to make things work…

What have you already tried:
I checked the app, triggers… but everything is as it should be.

Additional information: