Error during upload

I got this error, what does it mean?

Warning: S3::putBucket(enertrag-uploads): [BucketAlreadyOwnedByYou] Your previous request to create the named bucket succeeded and you already own it. in /kunden/mind-magic.net/projekte/wordpress-multiblog.de/wordpress/wp-content/plugins/amazon-s3-simple-upload-form/S3.php on line 188

Warning: S3::putObject(): [TemporaryRedirect] Please re-send this request to the specified temporary endpoint. Continue to use the original request endpoint for future requests. in /kunden/mind-magic.net/projekte/wordpress-multiblog.de/wordpress/wp-content/plugins/amazon-s3-simple-upload-form/S3.php on line 312

thanks for help
Uwe

http://wordpress.org/extend/plugins/amazon-s3-simple-upload-form/