• Go to your phone settings, find the permission called Autostart (or Start Manager) and turn it ON for the launcher.

  Note: Most phones by Chinese companies have this permission. Samsung and Pixel phones don’t.

• If your phone doesn’t have Autostart permission, turn off battery optimization for the launcher from your phone settings.

Once you have taken the above steps, turn off and on Accessibility permission from launcher settings to restart double tap to lock gesture. If it stops working again, turn it off-on again or try reinstalling the app.

P.S. Apologies for the inconvenience. Please understand that these issues come from Android itself and app developers cannot fix it. 😐