Cannot mount /data, can't flash ROMs

Hi guys
My Find7 using LVM and Paranoid ROM had rebooting issues (long time issues). I tried to 'fix file system' and it threw an 'encryption failed ' screen on ROM boot. That happened a few tims so I went into TWRP and attempted NANDROID restore.

That failed with error 225. I cannot after removing LVM install ColorOS 1.2.1i or 1.2.7.i . TWRP says it cannot mount '/data'. ColorOS stock recovery fails too.

Now I can't reflash through Fastboot TWRP :(

I think I recall fixing this by flashing Clockwork but I can't find a version for the Find 7.

Any help?

Thanks so much!