If you have the possibility of accessing the internal storage, either with the phone booted, or entering recovery, I would recommend making a backup of everything important, and reinstalling the ROM after formatting the internal memory, the only way to get back to it. decrypt it
Remember, formatting, wipes are not enough, the advice would be to do everything, format, wipe data and cache, restart to recovery, obviously all this with the mobile connected to some computer, transfer the ROM from the computer to the mobile, and reinstall
I had the same problem, same device, curtana, without being able to make a copy of data, I had to restore a copy from many months ago, and I lost a good part of relatively valuable information