When you have a mistake type “Missing Organisation Feature“, it means that this feature is not active. You have to go on Setup –> Ideas settings –> Edit –> Enable Ideas.
It is actually related to any other feature. Not necessarily only Ideas on Salesforce.
To find Ideas object type it in a search of setup console.
Now the tricky thing that NO ONE is writing about is that not all the organisations have Ideas. It depends on Classic edition and Lightning Experience. So, if you are using Lightning Experience, this object does not exist. But some applications are still requiring it.
Solution, how to find a Missing Organization Feature
In your profile you still have an option “Switch to Salesforce Classic“. Switch your account to Classic. Now you will find a missing feature. Activate it. And after click Switch to Lightning Experience.
and in the search type the feature name. In our case it is “Ideas”. And after edit and activate.