TWRP can not mount the phone memory. I can't make a backup and I can't make a wipe.
Can it be a matter of switching from the 7 version of Android to 8? twrp 3.2.1-0 worked without complaints on Android 7.1 Update from 7.1 to 8.1 (8.11.22) passed without any problems. Now there is another update...