swift – Getting error whereas working app on bodily iOS machine however on Emulator working high quality

Getting Error:

Confirm that the Developer App certrificate to your account is trusted in your machine. 
Open Setting on the machine and navigate to the 
Basic -> VPN & System Administration, then choose your Developer App certificates to belief it

However after I go to this location in my machine there’s not Developer App certificates. Please let me know if anybody encountered this subject earlier than.