When I load my unity project on Xcode, it loads but all my C# scripts isn't work?

My C# scripts aren't working, for example... I build my project, then I go to my folder which I built and click on the Xcode file, it works all fine. But once I import to my phone, I go for a quick test. All the level selects work, but then for some reason, my respawn script doesn't work I go to die, and just see myself following... If you don't understand what I'm saying, then I'm sorry I'm in dire need for help... Please help... Idk what it is, is the C# script corrupted, because I can respawn on my phone, but can respawn fine on the unity simulator... Please please help... URGENT... IF YOU HELP ILL CALL YOU A HERO