I could be wrong, since I don't have those Mods installed atm.
But AFAIK the 5SecondGodPhaser sets a Ships Hull to destroyed, so there is no real "Immunity" to that.
You could try writing a script that sets your Hull to non Critical and afterwards restores the Value the Hull had, when the phaser started hitting.
(Via hitEvent, or whatever that is called, Check if it was a phaser listed in the GodPhaserLibrary. Look in the GodPhaser Script for clues)
I don't have any Idea of the Chronitron Immunity. I think it isn't one of the original Immunities, so maybe you need to import something additional.
