The criminals do not keep working email contact addresses for very long for fear of being tracked by law enforcement.
Besides most security experts will advise against paying the ransom
demands of the malware writers because doing so only helps to finance their criminal enterprise and keep them in business. One of the reasons that folks get infected is because someone before them paid the bad guys to decrypt their data. The more people that pay the ransom, the more cyber-criminals are encouraged to keep creating ransomware for financial gain. Further, there is never a guarantee
that paying the ransom will actually result in the restoration (decryption) of your files.
If possible, your best option is to restore from backups
, try file recovery software
or backup/save your encrypted data as is
and wait for a possible solution at a later time.