Error Getting File from Cloud Storage

[EmmanuelX2]

Last 10 minutes of the video, after entering the API keys from Payload inside the .env file we created in the beginning.

ERROR (payload): Error getting file from cloud storage
err: {
"type": "Error",
"message": "Missing required parameter USERNAME",
"stack":
InvalidParameterException: Missing required parameter USERNAME
at C:\Users\raven\Desktop\e-commerce-store\node_modules\amazon-cognito-identity-js\lib\Client.js:128:19
at processTicksAndRejections (node:internal/process/task_queues:95:5)
"name": "InvalidParameterException",
"code": "InvalidParameterException"
}