Hello @3020709. This is odd. What does the notification actually say? By any chance, do you recall any instance when this usually appears - say when a camera is connected to your mobile device through the GoPro App? Have you not subscribed to GoPro PLUS even for a trial?
Thanks for getting back to us @3020709
We'll have this shared to the team.
What email address did you use on the GoPro app?
Would you mind testing this with another phone and see if the same happens.
Thank you for the information you provided, @3020709. We confirm that there is no PLUS subscription associated with your email address. By any chance, do you have a Google Play or iTunes account that could have been used to subscribe to PLUS?