Error 20106
Product: Platform
Error - 20106
Invalid Access Token grants
The Access Token signature and issuer were valid, but the grants specified in the token were invalid, unparseable, or did not authorize the action being requested.
To check whether the Access Token is structurally correct, you can use the tools available at jwt.io.
For the details of Twilio's specific Access Token implementation including the grant format, see the documentation.