If the error is from AxCrypt and states “Wrong Password”, then you need to remember or know the original password used to encrypt the files.
That is the whole, and really only, point of AxCrypt. No one can open them without the correct password. No backdoors, no administrator access. No one.
Encryption is not about access permissions that can be overridden by an administrator. There’s a longer discussion about the distinction here: https://www.axcrypt.net/blog/encryption-vs-authentication/ .