### I cannot login the interface "Oops! Something went wrong!"
You might be accessing the interface from an invalid URL. Make sure that the URL in your browser and the one set in your configuration file in `[general.public_url]` are the same.
Make sure to check the legacy logs at `/var/log/libretime/legacy.log`.
The `/var/log/syslog` file contains most of the system logs combined. This log file may contain information that the application logger wasn't able to log, such as early startup errors. You can follow the logs using:
For some LibreTime services, you can set a higher log level using the `LIBRETIME_LOG_LEVEL` environment variable, or by running the service by hand and using a command line flag:
To test or debug your input streams, you can use the [`tools/test-stream-input.py`](https://github.com/libretime/libretime/blob/main/tools/test-stream-input.py) script to send a test sound to your stream inputs.
To test the `main` input stream, you can run the following command:
If you are hitting `HTTP error 401 Unauthorized` on the main input stream, make sure that you have configured a user and password in the **Settings** > **Streams settings** page.
If you are connected but don't hear anything streaming, make sure that the main input stream is connected and enabled. In addition, to automatically turn on/off the stream on connect/disconnect you can configure the input stream auto switch in the **Settings** > **Streams settings** page.