Voicemail for Amazon Connect solution -- error in TranscriptionEvents lambda

Hello,

I followed the implementation guide for the Voicemail for Amazon Connect solution and I'm getting the error below in the TranscriptionEventsLambda. I'm having trouble figuring out where the missing "SecretId" param should be coming from and what the value should be. I don't see that in the implementation guide. Thanks!

2022-02-09T23:08:49.594Z undefined INFO error MissingRequiredParameter: Missing required key 'SecretId' in params at ParamValidator.fail (/var/runtime/node_modules/aws-sdk/lib/param_validator.js:50:37) at ParamValidator.validateStructure (/var/runtime/node_modules/aws-sdk/lib/param_validator.js:61:14) at ParamValidator.validateMember (/var/runtime/node_modules/aws-sdk/lib/param_validator.js:88:21) at ParamValidator.validate (/var/runtime/node_modules/aws-sdk/lib/param_validator.js:34:10) at Request.VALIDATE_PARAMETERS (/var/runtime/node_modules/aws-sdk/lib/event_listeners.js:132:42) at Request.callListeners (/var/runtime/node_modules/aws-sdk/lib/sequential_executor.js:106:20) at callNextListener (/var/runtime/node_modules/aws-sdk/lib/sequential_executor.js:96:12) at /var/runtime/node_modules/aws-sdk/lib/event_listeners.js:86:9 at finish (/var/runtime/node_modules/aws-sdk/lib/config.js:386:7) at /var/runtime/node_modules/aws-sdk/lib/config.js:404:9 at EnvironmentCredentials.get (/var/runtime/node_modules/aws-sdk/lib/credentials.js:127:7) at getAsyncCredentials (/var/runtime/node_modules/aws-sdk/lib/config.js:398:24) at Config.getCredentials (/var/runtime/node_modules/aws-sdk/lib/config.js:418:9) at Request.VALIDATE_CREDENTIALS (/var/runtime/node_modules/aws-sdk/lib/event_listeners.js:81:26) at Request.callListeners (/var/runtime/node_modules/aws-sdk/lib/sequential_executor.js:102:18) at Request.emit (/var/runtime/node_modules/aws-sdk/lib/sequential_executor.js:78:10) at Request.emit (/var/runtime/node_modules/aws-sdk/lib/request.js:688:14) at Request.transition (/var/runtime/node_modules/aws-sdk/lib/request.js:22:10) at AcceptorStateMachine.runTo (/var/runtime/node_modules/aws-sdk/lib/state_machine.js:14:12) at Request.runTo (/var/runtime/node_modules/aws-sdk/lib/request.js:408:15) at /var/runtime/node_modules/aws-sdk/lib/request.js:797:12 at new Promise (<anonymous>) { code: 'MissingRequiredParameter', time: 2022-02-09T23:08:49.532Z }