I am currently encountering the same issue. Avast Cleanup Premium does not open. Therefore, I am unable to wake up some programs that I need to use right now.
This sucks. It worked fine last night and nothing has done ever since. All of a sudden, it does not open this morning. I am stuck now.
What am I supposed to do? Sending log will solve this issue?
This seems more like a problem with not running service than the UI itself.
Could you please check whether Avast Cleanup Premium service is up and running?
You can do it by opening Services in Windows and finding the Avast Cleanup Premium service there.
If you find out that the service is down, try to start/restart it manually to see whether it helps. If not, you could try to restart the whole PC.
Please let us know whether it helped to solve your issue.
