Nfc password forgot and wont format

So I have a password on my nfc tag one day i went to remove it with this app called nfc tools and I know I didnt forget the password. But for some reason it wont let me remove it. I think it thinks it’s the wrong password but I have only used one password this whole time. I am not able to erase or format anything from it now. Can anyone help? Also in the app it says protect by password.