I have a user who created their user profile in joomla.
Once they login into their user area - I have given them a menu option of USer Profile menu from CJForum component.
This typically allows a user to use the edit button and add their user information, upload images etc etc.
When my user trys to use the edit profile button - they get an error message
Check-out failed with the following error. JLIB_APPLICATION_ERROR_NOT_EXIST
The strange thing is I have my own user profile information and when I login to my user and use the edit button - I am easily able to edit the information and save it.
Check the screenshot sent to me by my user.