Backers and Amount Donated only displayed when logged in


my problem is, that only when members are logged in, the Backers and Amount donated is dîsplayed and when none members who aren't logged in do donate, they won't see any amount or further backers.
Here is a link for e.g, no backer or amount is displayed at all, but there have been backers:

how can this be solved? Please help asap, because we can get very bad reputation, when none members do back and donate but don't see any amount or backer added!

Thank you and regards,