Wiki macro error

Yesterday I did not encounter this error. However, this evening when I went to make an adjustment to one of my wiki pages I noticed this:
Wiki macro error: 'Wiki' object has no attribute 'get_file_or_404'

The Wiki macro causing the problem is
<<toc /1>>

I use this to make a "table of contents" for my wiki so I can navigate between pages on my web browser. I found this method out on the online documentation when I first began using Bitbucket. I had not changed the page recently that is now giving me problems.
If I could know how to fix this problem, or a different way to display links to pages automatically, that would be appreciated.

Thanks