Enchanted by Nature expansion issue

silas10788​  The "game ownership disable or deleted" error is a known issue:

Fairy Garden EA app Error - "Game Ownership Disabled or Deleted" | EA Forums - 12331060

So is having two copies of a world:

Maps from DLC appearing twice on Overview page | EA Forums - 4946440

The latter at least has a workaround:

https://sims4.crinrict.com/eng/2022/06/world-appears-twice-on-world-map/

For the former, if you clear the EA App's cache, you should at least be able to get around the error.  Whether you can install the bonus content is another matter, but even if you can't, the rest of the EP should work, and the bonus content should install too once that error is cleared up.