LG G5 fingerprint scanner is not working


Hi, my fingerprint always used to work really well, but now, whenever I touch the fingerprint reader, I get a message saying, 'cannot read your fingerprint. If this continues, restart your phone.' It happens about 90% of the time. I tried restarting, resetting the fingerprints. Also, when I try to add a new fingerprint, I get a message saying, 'enrollment was not complete. Fingerprint enrollment didn't work. Try again or use a different finger.'