To crate a Facebook Page, click on this link and follow the steps. Note that you must not have country restrictions for it to work.
Also, sometimes the Facebook API experiences downtime, and it may cause the Facebook app not to render properly temporarily. This is obviously out of our control, and doesn’t happen often. You can check if the downtime is due to Facebook themselves here. Paste the URL of your Facebook Page on the respective field. If it’s not shown on the preview on the right side, then the issue is on Facebook’s side.