06-26-2019 05:57 AM
Thank you for posting. This is caused by a 3rd party application that you installed recently. Check if the lock screen would appear in safe mode. If it disappears, try uninstalling the apps one by one until the lock screen is gone.
To Enable Safe Mode:
1. Press and hold the Power button until Power off comes up on the screen.
2. Touch and HOLD Power off on the screen until reboot to safe mode appears.