HTC One M7 No OS after Flashing Recovery ROMS on TWRP

A

AC Question

I wanted to flash the AndroidRevolutionHD ROM on my HTC One M7 but after several failures i just said **** it and tried to flash back a recovery rom from before. After flashing in TWRP it says that there is no OS installed on my phone. I have 5 backups so i tried them all. Even if one works, after reboot the phone gets stuck on the white htc logo. Please help asap.

Thank you.