Each time you go into the Dashboard to restart from where you left off, you need to repeat the step to view the command palette and select CodeRoad:Start and re-enter the postgres connection string: psql --username=freecodecamp --dbname=postgres. And if you’ve restarted several times, you may need to delete your extra workspaces for whichever challenge you’re on.
Also, I struggled with the interface whenever I made a typo. Using the backspace would sometimes get me in trouble, so now I use the back arrow key when I want to delete and correct a typo. You can use the up arrow key to repeat the last thing you entered. And if you wind up with a prompt that is not => and the interface no longer responds to anything you enter, enter the weird character in the prompt and a semi-colon to continue. For example, if you have a prompt that’s something like )>, enter ); to get past it.
I’m still working on the Relational Database challenges and have learned that it’s easier to prepare statements in an offline text editor and copy/paste them into the interface to get past the interface quirks. Also, I think resetting a step got me out of trouble once. Hope this helps. Good luck!