Bolt App Broken

Bolt app broken? Common causes and practical fixes

When a Bolt-built app breaks, the problem is often not the visible error. It is usually a missing production setting, a bad assumption in generated state, or a backend rule the UI never made obvious.

1. It works in preview but fails after deployment

Check environment variables, build commands, API URLs, and third-party callback URLs. A preview environment can hide configuration gaps that production exposes immediately.

2. Login or user data behaves strangely

Auth bugs usually come from incomplete protected routes, stale client state, or database reads that are not scoped to the current user. Test with two different user accounts, not only your founder account.

3. Checkout or subscriptions do not update

Payment state should be confirmed by signed webhooks or secure server calls. If the frontend assumes a payment succeeded because a button was clicked, the app is not production-safe.

4. Asking Bolt to fix one bug creates another

Large generated rewrites can replace working code while trying to solve a narrow bug. Before asking for another broad fix, isolate the failing workflow and keep the repair small.

When to get help

If the broken flow affects login, payments, customer data, AI costs, or production deployment, treat it as an engineering issue instead of a prompt issue. gigabrainlab fixes AI-built app bugs and can audit the underlying risk.