I'm stuck at TWRP recovery menu,whenever I turn on my device. I had a perfectly good root on my Samsung Tab (SM-T111).
However I downloaded and installed "quick reboot" from play store.  I selected boot to recovery (in the app).
Now whenever I try to turn on my device I'm stuck in the Twrp recovery menu.  What to do?
You probably flashed TWRP both as recovery and as boot. to fix this just install the latest version of your ROM or flash you ROM's boot.img as boot;

fastboot flash boot [boot.img]