Your post will most likely be removed for rule 3, btw. Consider posting in one of these communities in the future for support questions:
Here’s also a guide for Lemmy (it assumes you’re using the Lemmy UI by the devs): https://fedecan.ca/en/guide/lemmy/overview
Your instance, lemdro.id, uses the Photon frontend. So you need to press “Create” on the top right and select “Community” instead of “Post”.
























What’s your lemmy config?