Snap fails with OOPSID

I have Ubuntu Core running on CM3+ . A particular snap is giving me problems. I am able to install the snap, after copying into the Ubuntu Box in --dangerous mode. But when I try to install the same snap from my brandstore after creating an image using the model assertion (mentioned in required snaps), the snap fails and also removes all other snaps

The only log i see the journalctl from the persistent logs is
Mai 13 11:01:01 iot-gw snapd[1605]: handlers.go:495: Reported install problem for "my-snap" as 443bf2e6-94f8-11ea-9ae4-fa163e102db1 OOPSID
How do I use this statement to make sense what causes the problem?

i answered you by mail …