When people suggest restarting your Roku TV, be aware that if you have "Fast start" enabled on your tv, turning the tv off and back on does not give you a complete restart. Instead use menu path Settings > System > Power > System restart, or just pull the power plug for a short time then plug it back in.
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.".
Streaming Stick 4K+ 3821 | Streaming Stick+ 3810 | TCL Roku TV 43S245/C107X