Can't access termbase list via GS REST (because no viewer cals)

Hello, I'm trying to retrieve a list of termbases from our GroupShare server (2017SR1CU9), But I get the message: "Maximum number of CALs reached.".

We have 15 editor cals and no viewer cals. I guess I get the message because there are 0 viewer cals.

What's the sense of not getting a list of termbases if you have a editor cal available? Shouldn't a editor cal have all the viewer cal privileges?

I filed a case in gateway.sdl.com and they wrote me to raise this question here.

Any help in this?

 

Thank you very much in advance for any answer.