Yes, if you take an illegal feat at level 1, your character breaks.
As for the monster classes, that's for how we do racial hit dice for some monster races, when that feature is turned on.
There are no actual material components required, it's just text, not game code.
Shaken is basically-2 attack, saves, and skills, I think. Not sure if it includes damage. Anyway,
this place should give you an idea, just search for shaken there, or the other effects you aren't sure of.
You have naked dwarf error? We need to fix that line of spells, still. Hope you enjoy your nudist companion