Getting access denied error while uploading file to amazon s3

 https://stackoverflow.com/questions/73020422/getting-access-denied-error-while-uploading-file-to-amazon-s3-using-tranferutili

Check if the user has access to the that specific S3 bucket or not. You can do this by navigating to IAM on AWS console, check the policies attached to your user and check if the user has AWSS3FullAccess policy attached or not. 

After you attach this policy, you shouldn't get access denied error.