The Photobucket connector should use the new REST/OAuth API

Photobucket has a OAuth/REST based API - it looks like you're using the older one. Check out developer.photobucket.com. The (old) key/secret from the (old) /svc/api.php are also available for use in the new API. It supports group albums and all the new photobucket features. The older api is strictly in maintainence mode and is not up to date with the latest features.