ERROR - 81019
Twilio phone number using deprecated API version
Studio does not support 2008-08-01 API The Twilio phone number connected to your Studio Flow is configured for the deprecated 2008-08-01 API, which is not compatible. Update the phone number API version to 2010-04-01.
The Twilio phone number is configured for the 2008-08-01 API
Update the phone number API version to 2010-04-01