Baserow to Make.com integration... API calls with multiple filters

Thanks Frederik, really appreciate your assistance and I am enjoying working with Baserow so far. If I can just work out the query string I will be able to really have some fun. So I tried your suggestion but unfortunately that returns an UnknownError [400] [Collection].
I did find I had the URL wrong initially, but fixed that and can call the API without the query string ok, but just can’t get the query string formatted correctly. Corrected screenshot with your suggestion.