Below are some common tricks and fixes for things you might encounter when running Navalia.
If you're seeing this error, and are running chrome manually, you'll need to open a port for remote debuggers to connect with. For windows, this looks like chrome.exe --remote-debugging-port=9222. On linux systems, you might also need to disable sandboxing as well --no-sandbox (or, in the constructor of Chrome, pass in { flags: { noSandbox: true } }).
It's likely that either something is erroring or not connecting properly. Navalia logs verbose information, you just need to start the program with DEBUG=navalia:chrome or even DEBUG=* to see these logs.
Please file an issue! Even if you want to just discuss things more broadly.