The Fonix Ransomware operators have shut down their operation and released the master decryption key allowing victims to recover their files for free. The master key works only on some versions of the ransomware. Some of the’members’ of the operation were not happy that it was shutting down. The shutdown could cause members to join other ransomware affiliate programs or splinter off and create a new operation. There is no ETA as to when the decryptor will be released, but if you are a victim of this ransomware, a solution will be available soon.
Source: https://www.bleepingcomputer.com/news/security/fonix-ransomware-shuts-down-and-releases-master-decryption-key/