It's something broken on their end. I'm getting this error when using the web inspector.
Uncaught (in promise) TurnstileError: [Cloudflare Turnstile] Invalid or missing type for parameter "sitekey", expected "string", got "undefined". a https://challenges.cloudflare.com/turnstile/v0/api.js?onload=_itch_turnstile_loa... aa https://challenges.cloudflare.com/turnstile/v0/api.js?onload=_itch_turnstile_loa... t https://challenges.cloudflare.com/turnstile/v0/api.js?onload=_itch_turnstile_loa... x https://challenges.cloudflare.com/turnstile/v0/api.js?onload=_itch_turnstile_loa... D https://challenges.cloudflare.com/turnstile/v0/api.js?onload=_itch_turnstile_loa... I https://challenges.cloudflare.com/turnstile/v0/api.js?onload=_itch_turnstile_loa... ue https://static.itch.io/game.min.js?1786375700:15 promise callback*ue/< https://static.itch.io/game.min.js?1786375700:15 Bh https://static.itch.io/react.min.js?1786375700:158 Dj https://static.itch.io/react.min.js?1786375700:194 unstable_runWithPriority https://static.itch.io/react.min.js?1786375700:25 Da https://static.itch.io/react.min.js?1786375700:92 xb https://static.itch.io/react.min.js?1786375700:194 Bj https://static.itch.io/react.min.js?1786375700:194 U https://static.itch.io/react.min.js?1786375700:16 onmessage https://static.itch.io/react.min.js?1786375700:24