An error occurred (AccessDenied) when calling the GetObject operation: Access Denied
#"An error occurred (AccessDenied) when calling the GetObject operation: Access Denied"
To resolve this issue maybe you are forgot to add the bucket policies.
Go to Lambda>>permission>>configuration>>role name>>It will appiers the IAM roles attach >> AmazonS3FullAccess . To that That's it. Now check your lambda