# KCS - Problem and Solution

Source: https://docs.arcxp.com/en/knowledge-articles/pagebuilder-engine/kcs---problem-and-solution.html

## Symptoms

- Attempting to access a page results in a 404
- Making a change and publishing does not reflect on the website

## Cause

Each page has its own unique resolver not visible in the UI. The page resolvers may in some circumstance become out of sync and need to be refreshed.

## Solution

1. Open any resolver in the affected environment
2. Update the resolver
3. Save the changes

## More information

- [Configuring resolvers](https://docs.arcxp.com/en/products/pagebuilder/pagebuilder-editor/developer-tools-overview/configuring-resolvers.html)