📄️ Critical Error
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📄️ Response Error
The "Cannot read properties of undefined (reading 'data')" error occurs when the Point of Sale (POS) system expects to receive data from the server but instead receives an empty response.
📄️ Plugin Conflicts
Plugin conflicts are one of the most common causes of issues with WCPOS. When other WordPress plugins interfere with WooCommerce or WCPOS functionality, you may experience crashes, performance problems, or unexpected behaviour.