You are not the only person this has happened to.

Uninstalling avast, and running aswclear in safe mode got rid of that problem for me, but then the problem I had was that safezone contents wouldn’t reset.

To solve that I also had to manually delete the ###aswSnx privatestorage folder in safemode (as suggested by the program developer in another thread).

Hope this works for you.

Edit - of course you also have to reinstall avast!