Strange - it says:
dev:5472019-11-05 07:24:26.276 errorgetAlphaSenders: Invalid Service SID was probably entered. Twilio Server Returned: groovyx.net.http.HttpResponseException: NOT FOUND
dev:5472019-11-05 07:24:25.623 debugGenerating Alpha Sender list...
dev:5472019-11-05 07:24:25.616 debugPhone list generated, phoneNumbers: []
dev:5472019-11-05 07:24:24.709 debugGenerating Twilio phone number list...
dev:5472019-11-05 07:24:24.705 debugAPI credentials validated
dev:5472019-11-05 07:24:23.810 debugValidating API Credentials...
dev:5472019-11-05 07:24:23.712 debugInitializing Virtual Container
I have asked Twilio to look at this topic as it says I have put in an invalid Service SID.