"My content and settings" just opens a window to the same page it was opened from instead of allowing people to view their own comments and/or delete them.
I haven't changed any of the plugin's settings in months.
@lazylonewolf It seems the issue comes from another plugin. Deactivate all plugins in your website one by one and do check after each deactivation to find the problem maker.
If this doesn't help try to switch the theme to the WP's default theme.