GWN API service error


I am working with the APIs for GWN, only using Postman at the moment. I am able to authorize and get the access token. I then use that to get the sha256 of the token, timestamp, clientid, and secret to get the signature. I was able to use that signature to list my networks. Twice. Now every time I try, I get a service error - 50004. Does anyone know what this error means or what could cause it?


Are you generating a new api_token? Because it expires in 3600 secs.