That's a common bug I have. I am sorry for that. If you go to the MagiStone and bring the girl to the safehouse, you should not have that. I am sorry for the inconvenience. Game is still playable tho if you feel like trying again. Once you get use to it i promise its fun!
Viewing post in They Are Coming! jam comments
I found the MagiStone but unfortunately it didn't help for long. There might be some other things influencing the bug. Now I needed "-1 Magic Core".
This is only a guess but you should check the amount with "greater to" instead of "equal to"
e.g. like this ---> if (magiccore=>5)
NOT like this ---> if (magiccore==5)