# The same code library loads twice

> The same code library loads twice. Two copies of one code library load on this page from different files.
> Category: Check reference
> Canonical: https://rabbot.ai/docs/checks/shopify-storefront-duplicate-library/
> Updated: 2026-10-17

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Buying journey · Info · Rabbot alerts on this on every plan.

## What it means

Two copies of one code library load on this page from different files. That makes the page heavier, and the two copies can conflict.

## What to do

Usually two apps, or an app and your theme, that each add the same library. Check whether an app you removed left its code in your theme files. Rabbot checks again on its next scheduled check and closes this once one copy is gone.

## Related

- [Product form lost its basic add-to-cart path](https://rabbot.ai/docs/checks/shopify-storefront-form-changed/)
- [Cart additions fell; a product form file stopped loading](https://rabbot.ai/docs/checks/shopify-storefront-incident/)
- [A store incident is open](https://rabbot.ai/docs/checks/shopify-storefront-incident-unproven/)
- [A stylesheet on your storefront does not load](https://rabbot.ai/docs/checks/shopify-storefront-stylesheet-missing/)
- [Add-to-cart button missing](https://rabbot.ai/docs/checks/shopify-add-to-cart-missing/)
- [How Rabbot checks your store](https://rabbot.ai/docs/monitoring/how-rabbot-checks/)