ZXP not installable - return 602 error - enterprise deploy

We have trouble installing the frame.io zxp panel.
We use the exmancmd method since we use SCCM for deployment. All our Adobe apps are deployed as well with SCCM, and are serialized: so we do not use named user license, and consequently not the Adobe CC desktop app.
This method of deploying zxp has been successful so far (we also deploy our MAM panel like this). We download them via the Adobe Exchange and deploy them ourselves.
But with the new frame.io panel we get a 602 error running the exmancmd, and it looks that we need to log in with an adobe ID to get the install started. As said this is not possible for us.
Please help - URGENT.
