Accidently Wiped Internal Stoareg from my HTC One S - TWRP Shows no OS Found

Hi,
I have accidentally wiped the internal storage on my HTC One S and now when i boot phone TWRP shows no OS installed.
My phone does not has SD card. It uses internal storage so i don't know how to copy the files and install the ROM.

I tried fastboot and adb devices commands but it returns empty. I am a newbie in device rooting so i am not sure where to go from there. I appreciate your help in this matter
Can you please assist me in this matter.

Thanks

Help needed! Accidently rebooted my Z2 D6503 UB after formating everything in PhilZ

Accidently rebooted my Z2 D6503 UB after formating everything in PhilZ recovery when trying to go back to stock for locking bootloader now when I try to Flash .314 FTF it fails saying Flash Aborted :confused: