I also received an error when trying to install TWRP. Then when I try to turn on the recovery mode when I perform hard reset on the device, the boot up screen appears and there is an exclamation point on top. If the event is the same, if you are root with Odin do the same thing again. However, to open the loading screen with Odin, Release tablet and wait for the charge to finish. When the charge is over, do the necessary combination for the Odin. If you are not root with Odin, contact me. I use translations so mistakes can be found. And my device is t113.