Fivestar appears on content type, but can't vote
When adding the FiveStar field,


If you choose "Rated while viewing" , that means all users can rate the node (with permissions) can rate the node. This is ideal to allow users to rate how well the article was writtem etc). 
If you choose "rated while editing", it will make the rating field disabled (static field) for other users than the node author. This is ideal for review nodes to allow the reviewer to leave their ratings while making the node or any other entity.