1. Never flash ROMS that aren't made for your phone. ARHD is made for GSM variants of the HTC One only. I believe ARHD was also available for CDMA in point in time, but not anymore
2. You can't go back to previous RUU's unless you have S-off
Have you tried to RUU to 1.31? Did you re-lock your bootloader first? If not, do that first and you should be fine.