Custom error class representing an error that occurs when an invalid URL is provided.
This error is thrown when a valid URL is required, but an invalid one is provided.
Creates a new instance of the InvalidURLError class with a default error message.
The default error message indicates that an invalid URL was provided for a Fireguard instance.
Custom error class representing an error that occurs when an invalid URL is provided. This error is thrown when a valid URL is required, but an invalid one is provided.