Hi,
sorry, but I don´t see any attachment/screenshot … also, I can´t find any valid subscription with your account (hoerbi). The last was a one month Ultimate subscription started with 27-02-2022. This subscription is run out, so not existing any more.
As I have asked about it in my first answer - please upload a screenshot of these errors and where this exactly happens. What you exactly do … and which aircrafts you want to add for which sim?
… and what is the problem now? The red ERROR or what?
When yes, as I have still wrote in my first answer you don´t have a valid subscription - your subscription runs out per 27-03 (you had a one month subscription - means 30 days) and therefore you can´t update any addon (existing or new) after this date.