KeePassX is it possible to guess the password?

Question

linux

KeePassX password stopped working. The password is more than a year old, entered daily by copying from character to character in a certain place. Created copies of the database. There is a key file. But bad luck, he does not accept this password and copies do not accept it. Dialog box when entering as if the password was wrong.

Answer 1

Busting is not an option. I think the issue is that the database is corrupted. Or the key file is corrupted (more likely).
Usually there is protection so that the decryption of the database on the computer takes about a second. Therefore, busting just becomes unlikely.