Root Gone Wrong topic

I have a verizon htc one m7, and I unlocked the bootloader and s-offed using sunshine. I flashed a rom to make it a google play edition and when it loaded, nothing works. Recovery mode is a black screen that says google and has a small lock at the bottom. I can get to the bootloader but I can't reflash anything using fastboot because it says I don't have root permissions. Please help. Thank you