Stuck in bootloop when trying to root.

[MTMaster]

Hi, so when trying to root my nexus 7 2013, it got stuck in a bootloop. Basically, I unlocked the bootloader, and flashed TWRP 3.1.0-0. However, then when I tried to go into recovery mode to flash SuperSU, as soon as i clicked the power button to enter recovery mode, it ended up in this bootloop with TWRP. I videod this so you could see what i am talking about.