It seems like you might be running into an issue with your React app. The error message in the screenshot you shared suggests that there might be a problem with your code or configuration. Without seeing your code, it's hard to say exactly what might be causing the issue. However, there are a few things you can try to troubleshoot the problem: 1. Check your console: You may find additional error messages in your browser's console. Open your browser's developer tools and take a look at the console to see if any errors are being reported there. 2. Double-check your code: Make sure that you've written your code correctly and that all dependencies are installed correctly. You can also try rolling back to an earlier version of your code to see if that resolves the issue. 3. Try a different port: Sometimes, when you have another process running on port 3000, your React app might fail to start. You can try specifying a different port by running npm start --port 3001 (or any other port number). Regarding your weather app with Axios, it would be helpful to see your code and get more specific details about what issues you are facing. Can you provide more information?