virus attack .kolz file aparently From Online key

if your files are encrypted with an online key, then these files cannot be decrypted, since only the authors of the kolz ransomware have the key. Try to recover files using the instructions, the link to which I give below. If with its help you cannot recover files, then subscribe to our channel, when it becomes possible to decrypt .kolz files, we will inform all our subscribers about it.
Link: How to recover encrypted files.