Recruit doesn't work!

[VOLAND]

Are you using any mods?

Same case as yours, the problem was a mod:

Why can't I recruit?

Recently came back to this game after a very long hiatus. Noticed that you can recruit from the Personnel tab now, cool! However, I’m unable to recruit anyone! I am sitting on just over 570 Food, recruit only costs 300, but on what I assume is the ‘recruit now’ button, the number 300 is red and no matter how much I click it I can’t recruit anyone! What am I doing wrong here?