It is still scanning
The first read takes a minute or two. The page says so while it happens.
Wait, then reload. This is the answer most of the time on a creator added in the last few minutes.
The account is private
Nothing can be read from a private account. There is no setting and no workaround, and this applies to every platform.
You can still add them, and nothing will ever appear. If you are not sure, open their profile on the platform in a logged-out browser. If you cannot see their posts, neither can Vamos.
They have not posted recently
The page says the creator has not posted recently rather than showing an error. That is the truth about the account, not a fault.
Worth removing from a Watchlist if it stays that way, because a dormant account takes one of your twenty slots and contributes nothing to your brief.
The fetch failed
Vamos says the videos did not load and offers a retry. Platforms rate-limit and drop connections, so a single failure is usually nothing.
Retry once. If it fails repeatedly on one creator while others work, send us the handle.
Nothing on a whole Watchlist
If no creator on a list is loading, check a different list. If those work too, it is that list; if nothing works anywhere, it is us, and the chat widget is the fastest route.