iLingQ for iPad - load lesson error

Any time I try to open the following lesson in iLingQ on iPad:

I got an error message:

Error loading lesson.
Could not load lesson text for content id: 34341
Invalid content id
Please try to load the lesson again later.

I have the latest version of iLingQ for iPad (and by the way, I got this message before the last update, and still get it after the last update).

@alb - The reason this happens is that this lesson is actually now private and has been removed from the Library.

@alex – OK, but just to clarify it: if this lesson is private, why I am able to access it at LingQ web-page??

@alb - For technical reasons, as the lesson fits into a category that is blocked via the API (which the app uses to interact with the site).