Anti Virus scan window

I have had AAVG Ultimate on my PC for a number of years.

I now find the AVG AV window appears on my screen as a white box....not populated. My AVG Internet Security icon does not take me to any application. I cloick it., it reacts, but does not load the control panel. Periodically the AVG AV window opens, but it is an unpopulated white black window. No user interface appears. 

Hi Ian.
We regret the inconvenience caused.
I'd request you to repair AVG setup to resolve the user interface issue.

Hi Ian.
We regret the inconvenience caused.
I'd request you to repair AVG setup to resolve the user interface issue.