Using a new Mac Machine and want to have same developer environment as the old machine

Hi,

We are developing apps on mac machine using Xamarin.

1. From machine 1 we had created various certificates and provisioning profile on Apple Developer Store. But OS of this machine crashed. So we had to get a new machine.

2. From this machine I am not able to sign the apps since the certificates imported from store to this machine do have same signing requests. What needs to be done in this case?

We are really stuck and need to go live on some apps. Any help would be appreciated.