Don’t worry, your data is still there, it’s just that incompatible/outdated version of addons prevents it from being displayed. Solution is simple:

  1. Navigate to WordPress -> Plugins page, select all LatePoint Addons plugins and deactivate them and then delete them (don’t worry, it won’t delete any data).
  2. Go to LatePoint -> Settings -> System and make sure your license is active.
  3. Go to LatePoint -> Addons and Install all addons that you’ve just deleted

That should solve your issue and your data should be visible again.