I recently reinstalled HOI2 on my hardrive. Now it installed and it opened properly to the main game menu and I was able to select a scenario and a nation. But when I click to start the game, I get this message.
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I've tried replacing the armour_tech.txt file with the original one from vanilla HOI2 but I still receive the same error. If someone could help me with this problem, it would be greatly appreciated. (By the way, HoI2 Vanilla runs perfectly fine.)

I've tried replacing the armour_tech.txt file with the original one from vanilla HOI2 but I still receive the same error. If someone could help me with this problem, it would be greatly appreciated. (By the way, HoI2 Vanilla runs perfectly fine.)