what you need to do is to remake the developer and distribution certificates for your new mac and install it then, you update your provision profile with the new certificate, reinstall it and everything works
PS: for remake your developer and distribution certificates you have to go in the keychan Certificate Assistant > Request a Certificate From a Certificate Authority.. then add your email and common Name, check Saved to disk. Finally Into the developer web site you remove your old certificates and create the new one with the new file that you have in the disk.