I cannot directly help you with a problem specific to an application called "LaCafe" because I don't have access to information about that specific software or its features. My knowledge is based on publicly available information and I don't have the ability to interact with private applications or systems.
To troubleshoot your issue, please provide more context:
- What is LaCafe? Is it a website, a desktop application, a mobile app, or something else? Knowing the type of application will help me understand the problem.
- What are you trying to do? What specific action are you attempting in LaCafe that is not working? Describe the steps you are taking.
- What error message (if any) do you receive? An error message will provide crucial clues for diagnosis.
- What have you tried already? Listing your troubleshooting steps will help avoid suggesting solutions you've already attempted.
With more information, I can try to help you find a solution or suggest resources that might be helpful. You could also try searching online for "LaCafe upload document" or consulting the application's help documentation or support resources.