For some reason when I press the new game tab I get nothing, no option available and the go to war button does nothing when I click it, also if I press archived wars it doesn't go to that tab at all.
Is there any chance you using some mods? If yes make sure they all disabled and try again. You might as well try to rename/remove this directory: C:\Users\%USERNAME%\AppData\Local\Uber Entertainment\Planetary Annihilation\mods\ This will delete all mods for sure.
