The 561 Proxy Unreachable error occurs when the exit node assigned to your request cannot be reached. This may happen due to temporary network issues, high traffic, or other unforeseen circumstances that prevent the proxy from establishing a connection.
While this is a rare occurrence, it can occasionally disrupt your workflow. If you encounter this error, the simplest solution is to retry your connection. In most cases, the system will assign a new exit node, allowing your request to proceed without further issues.
If the problem persists after multiple attempts, it could indicate a more specific issue with your configuration or network setup.