Hosting your own event requires a company profile.
For how to create one, see Creating a company profile. Once your profile exists, create your event in Creating an event.
Can we create a company profile without being a registered business?Yes — even an individual hosting an event has to create a company profile. The business registration number and the company details are optional, so leave them blank, and pick whichever industry is closest to the field you work in.A company profile is separate from your personal profile, so keep your personal account under your own name and register the name you go by on the company profile.