Problem with avast

Hello. I purchased avast with all add-ons When using avast - cleaning deleted files (about 3% done) there was a problem with Avast. Avast is on the taskbar on my computer and informs me that I’m protected but when I click on it pops up my white window. I can not use this program to clean the disk, for example.
Please help

Repairing and resetting Avast Antivirus via the Windows Control Panel
https://www.avast.com/faq.php?article=AVKB204#artTitle

I can not use this program to clean the disk, for example.
Do you have a malware problem that need to be fixed?