# SY02001: Invalid Configuration

## What This Means[​](#what-this-means "Directe link naar What This Means")

The system configuration is invalid or corrupted. The POS application found configuration settings that don't make sense or are incomplete.

## Common Causes[​](#common-causes "Directe link naar Common Causes")

* **Corrupted settings** — Configuration file became corrupted
* **Incomplete setup** — Setup process wasn't completed
* **Manual editing error** — Config files were incorrectly modified
* **Version upgrade issue** — Old config incompatible with new version

## How to Fix[​](#how-to-fix "Directe link naar How to Fix")

### 1. Reset to Default Settings[​](#1-reset-to-default-settings "Directe link naar 1. Reset to Default Settings")

If available in the app:

* Look for "Reset Settings" or "Restore Defaults"
* This clears custom settings but fixes corruption

### 2. Complete the Setup[​](#2-complete-the-setup "Directe link naar 2. Complete the Setup")

If setup wasn't finished:

1. Start the setup process again
2. Complete all required steps
3. Verify configuration before finishing

### 3. Clear Application Data[​](#3-clear-application-data "Directe link naar 3. Clear Application Data")

Remove corrupted config:

* **Desktop:** Delete app data folder, restart app
* **Browser:** Clear site data, reload

### 4. Reinstall the Application[​](#4-reinstall-the-application "Directe link naar 4. Reinstall the Application")

For persistent issues:

1. Uninstall completely
2. Remove any leftover data folders
3. Reinstall fresh
4. Complete setup from scratch

### 5. Check for Updates[​](#5-check-for-updates "Directe link naar 5. Check for Updates")

Configuration formats may change:

* Update the POS application
* Update the WCPOS plugin
* Reconfigure after update

## What Gets Reset[​](#what-gets-reset "Directe link naar What Gets Reset")

When resetting configuration:

* You'll need to log in again
* Custom settings will be lost
* Data will need to re-sync
* But your WooCommerce data is safe on the server

## Related Errors[​](#related-errors "Directe link naar Related Errors")

* [SY02002](/nl/error-codes/SY02002.md) — Service Unavailable
* [API06003](/nl/error-codes/API06003.md) — Invalid Site Configuration