Can't remove key

[latot]

Hi all, I know there is other issued about this, sadly didn't works here.

I was trying to install https://github.com/lwfinger/rtw89

Then, I put a password, but was a bad/short one, so I tried to remove it, then it started.

mokutil -l
#This will show only one key, the one I want to remove

mokutil --reset
#enter password, acepted
#reboot the pc
#Select Reset MOK in BIOS
#Accept reset MokList
#Password
#ERROR: Failed to set variable: (0XE) Not Found
#Failed to erase keys
mokutil -l #Still shows one key

Here other try:

mkdir backup
cd backup
mokutil --export
dir
> MOK-0001.der
mokutil --delete MOK-0001.der
#enter password
#reboot pc
#Select Remove MOK from bios
#Confirm deletion
#Password
#Failed to retrieve MokList
#Failed to delete keys
#restart
mokutil -l #still shows one key

I'm in Debian Bullseye 64, I have tried disabling UEFI, cleaning the keys from BIOS, but nothing works u.u.

Sorry if this is not very well written, the computer now is without internet, and some parts are from the bios, so I written most of it.

Thx!