Lg G2 Brick Need Help!

My phone was really slow and it was lolipop. When i try to open same apps it stucked. Then i decided to install cm 12.1. I did it before. My phone was rooted and installed TWRP. But idk why i couldn't open the TWRP then i tryed to flash TWRP again. Boom i restart my phone in to recovery and now i can not open it. It is just a black screen, no logo, no download mod and when i plug my phone to pc. Pc gives error that wants me to format partitions.

Pls help. i am using D802TR LG g2

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