Roku operating software version 10.5 is gradually rolling out right now. Check your Roku version via Roku menu path Settings > System > About.
Possibly the Rokukast browser extension needs to be updated for Roku 10.5, or maybe for the latest version of your browser. Check with your Rokukast installation/download source to be sure you have the latest version.
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