Then the problem is an issue with one of your templates. You will have to look at the templates you use on that page, see which ones are modified, then compare it to the default template and see what the differences are and modify yours so they work.
If you are in debug mode, then you can see a list of all the templates for the page on the bottom left. Go through that list and see which ones were modified.
I do not know what template it is or I would tell you. You will get a list of them in debug mode. Then go to your Style Manager and look up the template. If it's been modified, the name will be in red. Those are the templates you should then look at.
A quick search would give you this - Turn on the debug mode It isn't recommended to leave it on very long on a production site, if at all, since it shows for all members.