Avast Premium - Firewall keeps turning off (SOLVED)

Hi there

20.3.2405 (build 20.3.5200.574)

Whenever starting my PC since the Avast update a few days ago, the firewall is turned off by default. When I check the firewall settings on the protection tab, it is off, with no way of turning it on (screenshot attached).

I have tried repair app tool, but no difference. Any help would be appreciated - thanks

Windows 7 Professional 64-bit SP1
Intel Core i7 3820 @ 3.60GHz
16.0GB DDR3 @ 799MHz

(yes I know, old, but it works :P)

Ignore this - solved

Used Avastclear utility in safe mode to uninstall, and then reinstalled. All working fine now.