this was their answer after they tried to restore the damage and they failed!
We check all you 1206 help files with hashing them, Unfortunately, we did not find any difference between them. That means your private key is 100% correct, But your files was damaged, One of the potential reasons is the use of public programs. They are trying to bring your files back to their original state, but because the content has been modified, this will damage your files. You are a good man, and making these words upset us. Unfortunately, all you can do. start first ( download link, AES ) zenis decryptor and start full decrypt to undamaged files will be returned, Also upgrade your server and keep string password use for it, Although it's a pity for us, we are sadly saddened by this. Life goes on. Get up from the ground and continue with strength. Never forget the security of information. Our digital assets are not all our assets.