Ugh help my 626s wont boot anything marshmallow broke everything

Ugh help my 626s wont boot anything marshmallow broke everything It will only get to htc boot screen and then reboot back to it I have twrp I tried other roms but no avail I cant use RUU and I cant use the RUU rom file because my software version is to newer and it also says
19 RU_Main_VER_FAIL os-version in android-info missing or i
19 RU_Main_VER_FAIL os-version in android-info missing or i
FAIL19 RU_Main_VER_FAIL os-version in android-info missing or i

That is when I use the RUU rom