Where is the option to let users report a post?

Right now, all people, including me (an admin) cannot report any post and we get this error message:

[#10136] You do not have permission to report the item you are attempting to report.


I can't find anything in the ACP -- can someone tell me the path? Or is this a bug and should be reported in tracker?

This can be done by managing the report center plugins, however this is not a support forum but rather a feedback/feature-request forum. Please post in the appropriate peer to peer forums, or submit a ticket for official support (both options require that you have an active support contract).