Don't pay! There is no guarantee that your files will be decrypted after payment!
Perform a full scan with your antivirus as well as with Malwarebytes to remove all threats on your PC.
At the moment, it is apparently not possible to decrypt the file extension you gave me, but you can try No More Ransom to see if there is a way or not by uploading your encrypted files. You can also try restoring your system to a restore point before infection.