Steam has banned your apiSolved
STeam feel your demo website is not safe.

The URL you are attempting to log in to has been blocked by our moderators and staff. This site may be engaged in phishing, scamming, spamming, or delivering malware.
ok ha domain name
Aye, it's due to the .ga domain name. Those are all flagged by Steam. I might swap it to something else later to avoid confusion but the issue doesn't have anything to do with the script itself.
Locked automatically