Welcome to the ODK forum, @Particimon ! We’re glad you’re here. When you get a chance, please introduce yourself here. I’d also encourage you to add a real picture as your avatar because it helps build community!
So with the latest releases of ODK-X (e.g. ODK 2 Tool Suite Release - v2.1.2) Aggregate is deprecated. Sync Endpoint is the new option: ODK-X Sync Endpoint — ODK-X Docs
Best,
Caroline