‘Sync your Avira licenses -Log in to keep your Pro benefits’ notification keeps appearing, but what does it mean?

I recently purchased a 1 month subscription to Prime for Mac. I've registered my account, I have a login, and I've installed the software, which appears to be working. Except, I keep receiving a notification, over and over and over again which says: 'Sync your Avira licenses - Log in to keep your Pro settings' with two clickable options attached, 'Later' and 'Log in'. When I click on 'Later', the notification goes away, and nothing else happens (until the notice reappears a while later). When I click on 'Log in', I get the same result- the notice goes away, and nothing else happens. Then the notice comes back.

What is this notice even asking me for? What does 'sync ' mean? If it's talking about syncing with my phone, that doesn't make any sense, since it's an (Apple) iPhone, and therefore doesn't have/can't have Avira.

This notice is very annoying, both because it keeps coming back, with no means of resolving whatever problem it's talking about provided, but also because it's worded like a THREAT:

'Do this, (this unknown, incomprehensible thing it wants me to do) OR ELSE something bad will happen (you'll lose your 'Pro settings' whatever the hell that even means--- how can I have Pro settings when I'm not a Pro subscriber?)

Well, fine, two can play that game- If you don't tell me how to make sense of this stupid notification, and then make it go away forever, I'll cancel my subscription, which means you won't get any more of my money.