Cannot click on avast

I opened avast today and it was working fine I started a quick scan and that worked but a few minutes later when I went onto the avast window I couldn’t click on anything it just made a “ding” noise so I tried to close it which also wouldn’t work so I opened task manager which closed it, i reopened it after but I still could not click on anything it just made the same noise where ever I clicked on the page so I can’t scan my computer, I have reinstalled avast and repaired it but this problem wont go away I still cannot click on anything, please help

And you have also restarted the computer?