Query over pages currently blocked by Robots.txt

Hi there,

I hope someone can clear something up for me. We have just last week launched a client’s shopify store. They have a number of collections but used tags to filter. The filtered results show like this

https://domain.com/collections/biolage?constraint=colour-treated

However in Google search console we are getting a warning that the following

https://domain.com/collections/biolage/biolage colour-treated is indexed though blocked by Robots.

We do not have a collection called Biolage Colour Treated?

This is one example but there are about thirty more all with the similar situation? Can someone please explain what is happening here? I would like to go back to the client who is a little concerned.