Rough idle after intake manifold removal/refit

[JazzyRCZ]

I removed the intake manifold to replace the boost solenoid under it as well as check vacuum lines which 2 were unplugged as i was only getting 2 psi of boost since a garage replaced the rear water pipe.

Also i will mention that i managed to snap the hose which goes from the vacuum pump to the brake servo so now have no brakes will need to replace that, so now my question is would that be the cause of the rough idle when i started it?

Cheers