Both your Themes and the Tutorials app are outdated. This can cause inaccessibility of User Profiles and other issues (the App). The outdated theme shows an error in the NavBar telling you to switch to the Default Theme. The same error is shown in the footer as well. This is because there have been theme changes between 4.0.13.1 and 4.1.X. You need to either install an updated theme for 4.1.X, browse the Downloads section for Villain, Chameleon Light, Uniform and Animate or simply wait until somebody releases an updated version of a theme you're using. if you have problems uninstalling Tutorials from within the ACP, delete it manually /yourforums/applications/tutorials. Thank you & thank you for being patient and not getting a attitude with me because I didn't understand something you said.