I need help supercell – Clash of Clans Review

This game is really fun to play. But there is this glitch that happens to me today. I go to clash of clans and I look at how many gems I have and it says I have -4000 gems. Than I go okay it probably just looks that way for some weird reason. But then I go to collect a 350 gem achievement and the negative number goes down and I go that’s really weird. So then I go to click on one of my builders and I click finsh building for 87 gems or something like that and then it just says go to the shop to buy more. So now I’m stuck with -4000 gems. Please help me supercell:(
Review by jkguff on Clash of Clans.