So, I wanted to flash stock firmware and ended up doing something wrong and kept getting "No OS installed" in TWRP (newest version). I couldnt flash anything and my 1st gen Kindle fire would get stuck on "kindle fire" logo. Finally mounted the tablet via TWRP and transfered the latest nightly of CM to the tablet. After flashing it, I am getting an error saying "E:Cannot mount /data" Now when I boot I get the CM boot logo (YAY! progress) but it is stuck in bootloop at the logo. I've tried KFU and the Unbrick utility, but the unbrick utility keeps saying "device offline" even though when I use "adb devices" from CMD it lists it as there. I'm glad I finally got past the kindle fire logo, but now I'm stuck at CM logo. Is this do to the error about not being able to mount data? How can I fix this? Thanks to anyone who can help a brotha out.