There used to be a lot of confusion because Adobe had Captivate (eLearning authoring tool) and Captivate Prime (LMS). Recently the latter has been renamed to avoid that confusion: Prime is now ‘Adobe Learning Manager’. Of course it will take time to get used to the new name. Here is the forum on the Adobe site for the LMS:

https://community.adobe.com/t5/adobe-learning-manager/ct-p/ct-captivate-prime?page=1&sort=latest_replies&lang=all&tabid=all

There is also a dedicated forum for Captivate, which is now only for the authoring tool.