looks to me that you have empty category names forhte language records, this can happen if you create the categories and the activate the lanaguge.
Go int the BO>Admin and do a validation store with fix errors checked, it should create missing records for you. If this doesn't work, then you've created the records in the lanaguge, but left the name empty, so you'll need to go in the BO and edit the category names in each language.
Go int the BO>Admin and do a validation store with fix errors checked, it should create missing records for you. If this doesn't work, then you've created the records in the lanaguge, but left the name empty, so you'll need to go in the BO and edit the category names in each language.