Board Game Arena

I tried to set this up to solo training mode to learn the game, but I cannot even choose a worker. Where should I be clicking?

I've tried to set up a game, and here are the steps I've took:

(1) Start the game
(2) Select your clan [at the top of the screen, you should have two clans to chose from]
(3) Select one of your workers on your personal board [bottom of the screen]. You have two choices: the topmost forest worker, or the topmost mountain worker. There should be a small pop-up with the price you have to pay when you hover over the workers.
(4) Select a valid position on the map
(5) Continue from here