newbie help

[joshuacalloway]

dunno, probably my mistake, but I deployed this and am getting internal error

➜ serverless-step-functions-example git:(master) ✗ sls deploy
Serverless: Packaging service...
Serverless: Excluding development dependencies...
Serverless: Creating Stack...
Serverless: Checking Stack create progress...
.....
Serverless: Stack create finished...
Serverless: Uploading CloudFormation file to S3...
Serverless: Uploading artifacts...
Serverless: Uploading service .zip file to S3 (6.43 MB)...
Serverless: Validating template...
Serverless: Updating Stack...
Serverless: Checking Stack update progress...
.............................................
Serverless: Stack update finished...
Service Information
service: nodejs-stepfunctions-example
stage: dev
region: us-east-1
stack: nodejs-stepfunctions-example-dev
api keys:
None
endpoints:
GET - https://193osh65jj.execute-api.us-east-1.amazonaws.com/dev/start-timer
functions:
startTimer: nodejs-stepfunctions-example-dev-startTimer
sendNotification: nodejs-stepfunctions-example-dev-sendNotification
Serverless: Publish service to Serverless Platform...
Service successfully published! Your service details are available at:
https://platform.serverless.com/services/joshuacalloway/nodejs-stepfunctions-example
Serverless StepFunctions OutPuts
endpoints:

➜ serverless-step-functions-example git:(master) ✗ curl https://193osh65jj.execute-api.us-east-1.amazonaws.com/dev/start-timer
{"message": "Internal server error"}%