I didn’t even intend to press the button about upgrade points and I clicked it by accident. I regret it. When creating this cheat, authors of the program clearly did not think that the points would be impossible to spend completely and the message about them would not leave the screen. The Tab button now constantly opens upgrade menu and you have to hand switch to the map!
Devs, add the “clear points” command. Without it, the game becomes unbearable. What’s even worse is that in this game you can’t go back to an old save.