After upgrading from Confluence 3.5 to 5.6 I'm getting a badly rendered header in my personal space with "#menuMacros_renderGlobalBrowseMenu()" being displayed and, not surprisingly given the message, no menu. This is not browser specific. Have not investigated plugins yet.
Other users are not seeing this with their personal spaces so this may be because I had changed my theme a looong time ago. Since I can't get to the menu I can't try playing around with themes to investigate this theory. Unfortunately the folks that currently admin Confluence and performed the upgrade are new to Confluence (long story) so I'm currently on my own on this one.
Any insight someone could provide on this would be appreciated.
Thanks,
Mike