Hi, @Dfor welcome to the community. Have tried a basic "Restart" (not factory) hold the side button for about 25 seconds and release when the logo appears. After about 30 seconds you should be up & running.
Allowing you had previously been using your "Sense" without problems, have you changed anything, a phone update, a device update? Check whether your phone is running iOS 14 or newer.
Let us know.
Cheers
Gr4ndp4 | UK
AWAKE! for morning in the bowl of light has cast the stone that set the stars to flight.
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