--- title: "Troubleshoot UI" slug: "troubleshoot-ui" description: "Learn how to troubleshoot UI errors in Zilliant CPQ." updated: 2024-08-27T20:28:30Z published: 2024-08-27T20:28:30Z canonical: "docs.zilliant.com/troubleshoot-ui" --- > ## Documentation Index > Fetch the complete documentation index at: https://docs.zilliant.com/llms.txt > Use this file to discover all available pages before exploring further. # Troubleshoot UI ## Troubleshoot UI errors in the developer console 1. In your browser, open **Developer Tools**. If you are using Google Chrome, select the **More** icon, then select **More tools > Developer tools**. 2. In the panel that opens, select **Console**. 3. Review the console details for errors. ## Troubleshoot server errors The **An unexpected error occurred** notification indicates a server error. To review a server error: 1. From the SAP cloud platform cockpit, go to the appropriate system and download the server log. 2. Select the last exception in the server log. ## Logging levels Logging levels are: - **ERROR**—Default log - **TRACE**—Most detailed log - **DEBUG**—Less detailed log To change the log level, the class must be executed at least once. Otherwise, it will not appear on the logger list.