My facebook won't let me tag people in posts, change post privacy, edit friends lists or access messages.?

[Magdalastra]

I use the "@" sign to tag, and the names don't come up. When I try to edit friends lists, the hyperlinks to the names don't work. When I select 'make this visible to specific people or lists' on post privacy settings, nothing happens; no box comes up. Also, when I try to access private messages, the summary part comes up, but when I try to access the message centre it gets stuck on the loading page. Could anyone advise?