WHITE LISTING

I am being asked by NordPass to white-list NordPass via your antivirus settings.
Where do I find this in Avast?

Why do they feel the need to do that, e.g. are you experiencing any problems ?
If so please give details.

Not knowing what the problem/issue might be, it is hard to say what action to take, in which Avast component, Firewall, Web Shield, File System Shield, etc.

You also don’t say what Avast Product (and version/build number) that you have installed ?