Web Inspector funktioniert nicht

Console: Type JavaScript commands in the console to debug, modify, and get information about your webpage.  Network: See a detailed list of network requests and responses made from a webpage.  DOM: View, inspect, edit, and search the elements that make up the DOM of a webpage.  You can also see logs, errors, and warnings emitted from a webpage.  Elements: See the details about the webpage’s nodes and styles.  Resource: Find details about the data stored by a webpage such as cookies, local storage, and session storage.