The issue is that the Analytics component import may not be available. But more likely, the error mt is not iterable at the layout level suggests the font initialization is causing issues — the variable option on Inter combined with how it's being used (or not used) in the JSX can cause problems. Let me also check the components for any issues:

The error is caused by the Analytics import — the @vercel/analytics package may not be properly installed or compatible. The fix is to remove the Analytics import and usage from the layout since it's not needed for this design showcase.

The error was caused by the @vercel/analytics import — the Analytics component wasn't resolving correctly in the sandbox runtime. I removed both the import and the <Analytics /> JSX from the layout, which is all that's needed since this is a design showcase rather than a production deployment. The two design components and page remain unchanged.

Now let me also remove the unused imports and the FloatingBadge component since it's no longer used:

Simplified the social card by removing the "Sandbox to revenue" subtitle, the Vercel Marketplace badge, and the floating feature pills. The card now focuses on a clean centered headline ("Stripe on Vercel"), the animated cryptographic key exchange visualization, and a single CTA button -- keeping it punchy and visually driven.