license file constantly disappearing from avast internet security

[a6]

Hello.
I have a problem with my license file constantly disappearing from avast internet security. The licence disappearing every time after 2-3 days or after that program has updateds.
Can you please describe in detail to me how I should proceed when activating my license file, what steps I should take to keep the license file in the program constantly.

[Asyn]

Hi, AIS isn't supported anymore, you need to switch to APS.