I can't take a screen shot at the moment nor confirm the exact wording, sorry. But the message is the standard alert that displays in configuration pages about making changes to disabled modules, not an error message but the alert that appears when entering a configuring page for a disabled module. It provides a link to the modules list, giving an opportunity to enable the module. In my case, it appears directly above the password fields within the User Corner page. The password fields are the only thing available in User Corner.
I'll get a screen shot later, if that would help.