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Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallMost Hostinger Horizons problems are easier to prevent than to repair: describe the app and its behavior precisely, build complex projects in small steps, and test each change before publishing. Hostinger now calls Horizons’ prompt-based workflow AI Builder agentic mode. The guidance below uses “Horizons” where it helps identify the product, and the current name when referring to Hostinger’s support instructions.
Choose the right mode before you start
Hostinger positions AI Builder agentic mode for custom web applications and logic. Its visual manual mode is intended for content-oriented sites. Choosing based on the work you need to do can prevent you from building around a workflow the platform does not support.
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| Consideration | Agentic mode | Manual mode |
|---|---|---|
| Best fit | Custom application logic, dashboards, portals, and trackers | Content-first portfolios, blogs, business sites, and landing pages |
| How you work | Describe desired behavior in prompts, then inspect and refine generated changes | Build visually in the editor |
| File or server access | FTP, File Manager, SFTP, SSH, and file-level create, delete, or rename actions are unsupported | Not stated in Hostinger’s agentic-mode technical specifications |
| Other constraints | Direct GitHub code import, cron jobs, and resource monitoring are unavailable; SSL, CDN, and server cache are managed automatically | Not stated in Hostinger’s agentic-mode technical specifications |
These agentic-mode limits are documented in Hostinger’s technical specifications. If extensive CMS plugins or direct server and file access are essential to your workflow, investigate another platform before committing. Hostinger says external databases and APIs can be connected through prompts, but the available integration and its configuration depend on the service.
Write a prompt that defines the app, not just its category
Say who the app serves and what it must do
“Make a functional web app” leaves the purpose, users, and expected behavior open. Instead, explain the problem the app solves, who will use it, and the essential tasks it must support. Hostinger’s mistake guide offers a task manager as an example: specify user authentication, a task dashboard, and a responsive layout rather than asking for a generic app.
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Replace subjective design instructions with observable details
Words such as “nice” or “user-friendly” do not tell the builder what to create. Name the preferred colors, layout, navigation, font choices, and form fields. Describe what each interaction should do. When color consistency matters, give concrete values such as hex codes.
Describe the information and rules the app handles
If the app stores or processes data, identify the entities, fields, relationships, and user actions. State required behavior such as authentication, filters, or reports. A request for “a database system” alone leaves important decisions to the AI.
Set boundaries for the change
Identical prompts can produce different outputs, and Hostinger says agentic mode may make additional changes it interprets as necessary. Tell it what to change and what to leave alone, then inspect the result. Make one focused change at a time where possible; restore or undo a change that introduces a regression.
Build a large project in stages
Combining authentication, messaging, uploads, recommendations, live streaming, and other features in one request makes priorities unclear and gives you more behavior to diagnose at once. Start with the smallest useful working version, then add one focused feature per prompt.
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- Define the core workflow. Specify the primary user, the main task, required screens, and the data the workflow needs.
- Build and inspect that core. Check that navigation, forms, validation, and expected behavior work before adding more scope.
- Add one feature. State its inputs, outputs, rules, and any relationship to existing data or screens.
- Test the new behavior. Verify it in the preview before requesting another feature.
- Keep a stable version. Use restore or undo controls if a new change makes the app worse.
Test behavior, not just appearance
A polished screen does not show whether accounts, forms, data handling, or security requirements work. Describe how input should be validated, what authentication is required, where submitted data should go, and how it should be protected. Then test those behaviors, not only the layout.
For integrations—including examples Hostinger lists such as Stripe, Mailchimp, Zapier, AdSense, Supabase, and external APIs—describe the connection and the specific feature that needs it. Availability and configuration depend on the integration. Do not put sensitive API keys or account credentials in a prompt that could expose them, a public repository, or frontend code; use appropriate secure configuration mechanisms. Build and verify one integration-dependent feature at a time before launch.
When a prompt misses, name the defect
Repeating a vague request often reproduces the same ambiguity. Identify what is wrong and what the corrected behavior should be. For example, rather than asking again for a “better sidebar,” specify that it should collapse, display vertical links, show nested menus, and expand a nested menu when clicked. This gives the next prompt concrete acceptance criteria.
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How to recover from a failed prompt or repair
Hostinger’s current troubleshooting guide advises against repeating the same automated repair after the first attempt fails, because further attempts can create more errors. If the interface offers Ask to Fix, use it once. If that does not resolve the issue, provide a focused description and the available technical evidence, or restore a stable earlier state if the change has made the project worse.
Collect the evidence that describes the failure
- Reproduce the issue and note the exact action that triggered it.
- In the browser’s developer tools, inspect the failed request in the Network panel. Record its request URL, request payload, and server response.
- Check the Console for the latest error logs.
- Describe what you expected and what happened, and include the visible error details rather than guessing at their cause.
Why is my Horizons preview blank?
For a fully white or blank preview, Hostinger directs users to capture the browser Console error and contact Customer Success for engineering investigation. For a visible preview with a script or other error, use the Network and Console diagnostics above and follow the broader troubleshooting guidance.
Why is my published app offline?
Hostinger’s technical specifications say an active hosting plan is required for a project to remain published. If a plan expires, sites become inaccessible until it is renewed; cancellation without renewal can permanently delete project data. If portability or retention matters, export the source code and keep a local copy. Hostinger says exported code is a static website and cannot be imported back for further AI-prompt edits.
How do I connect a custom domain?
Hostinger’s current domain connection guide says to publish the app after connecting its custom domain. The current technical specifications say domain pointing is supported through nameservers or a CNAME record, not A records. Because older Hostinger support text conflicts on A records, follow the current domain-specific instructions shown in your account.
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Quick Recap
Check these things before you publish
- Core workflows work, including forms, validation, authentication, and data handling—not only the visual design.
- Each integration-dependent feature has been tested, and sensitive credentials are not exposed in browser code or a public repository.
- The intended custom domain is connected and the project has been published.
- Your hosting plan is active, and you have saved a local copy of exported source if you need a separate copy for retention or portability.
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