Unhappy [Q] rebooting to TWRP recovery - ROM not loading

i installed TWRP from google play
since then i was using omega omni v3 rom (kitkat) and had cwm recovery

now when i changed the cwm to TWRP
and i got the upadte of omega omni v4 rom

booted to TWRP recovery
dalvic cashe
factory reset

then installed the omega omni v4 rom
after it shows reboot and then it again boots to TWRP recovery screen
not loading rom

please advice step by step details
not familiar with developing