There's probably nothing wrong on your end that you need to fix. An automated algorithm must have detected something and flagged your game for manual review by a human, and your game won't be indexed until a staff member can review it. If you check other posts, you'll see that this is relatively common, and while wait times vary, one to two weeks isn't unusual.
Personally, when the documentation refers to "Established sellers," I don't think it applies to an account that's barely a year old and is limited to donating. On Itch, to "sell" a game, the client must be able to "download" it, so projects that are only HTML are not considered sales.