Hello @paimon9
Welcome to the Roku Community.
Please check if the Screen reader on your Roku device settings is turned off. There are a few possible troubleshooting steps we can try to resolve the issue. Restart your device: Unplug your device from power for at least 10 seconds, then plug it back in and turn it on.
To disable Closed Captioning/Subtitles on Roku, click on Settings/Accessibility/Screen reader /[Off]. Click on this link for more information: https://support.roku.com/article/231584647
When watching material, you can access the Accessibility menu by pressing the * star button on Roku remote four times.
You may also need to dig more into the channel/app options or settings menu you are watching, since they sometimes do override Roku settings.
Regards,
Karla