Menu Titles Appear Broken in Confluence Admin or Space Admin Due to Incompatible Plugins
Menu titles and menu items appear broken in Confluence Admin and/or Space Admin:
One or more plugins are incompatible with the Confluence version
Please upgrade all of your existing plugins and uninstall all plugins that have no compatible versions.
If a plugin cannot be uninstalled, please proceed to delete the plugin manually through the database as explained here: Removing Malfunctioning Plugins