@Bill71-
I have never seen a popup like that with any of the Rokus I've had over the years. I suspect it is something being displayed by your TV, not your Rokus.
Try doing a web search for [your tv brand] No Time Information and see if you find something that helps.
Roku Community Streaming Expert
I am not a Roku employee, only a user like you. Please, no support questions via private message -- post them publicly to the Community where others may benefit as well.
If this post solves your problem please help others find this answer by clicking "Accept as Solution.".
Ultra 4800 | Streaming Stick 4K+ 3821 | TCL Roku TV 43S245/C107X