itch.io

I am definitely doing sth wrong but idk what. I. Can't. Get. Past. The. Tutorial. No, this isn't my first time playing a game. I am stuck at the '0/18 Copper' part because the game doesn't tell me what to do. If it was just mining the copper by clicking on it I wouldn't be here asking for help. Clearly, the game wants me to do sth with the 30 Copper my drone collected, but it doesn't tell me what, or atleast, not clearly enough. What do those 18 Copper mean? Where do I have to deliver them?