Problem when compiling for IOS

Hello to all guys, before today i compiled my little app for ios easely but from this morning i'm having this error using AIR 3.8:

however i can install my app on my iphone5 with no problems but i'm scared for this message

p.s. before using AIR 3.8(version 3.7) i had this problem and another like PIE error but with AIR 3.8 the PIE error disappeared