BoltConnectionError in Academy

I'm in the middle of a GraphAcademy course.
I get "BoltConnectionError No connection found, did you connect to Neo4j?" in the sandbox.

I have no idea what this means, and I don't recall connecting to anything?

I'm afraid this isn't very helpful or useful for a learner.
There is no indication of what to do to get out of this?

I am getting error while connecting to the sandbox as provided for the course

rashidquamar_0-1654793284039.png

If you see "connection unavailable" there are 2 possibilities:
1. Your Browser/Firewall/VPN is preventing access to sandbox.neo4j.com which is something you must address on your end. Can you access the sandbox via sandbox.neo4j.com?
2. The sandbox is no longer running because it expires after 3 days. Try clearing your Browser cookies and reload the GraphAcademy page. This will recreate the sandbox instance for this Challenge. It will take a minute or so for you to see the $neo4j prompt, meaning that you are connected.

me too, so how you fix it?