After triple checking everything, I can say with absolute certainty, that you did something silly, because the error is NOT mine. The error you're getting, means that it can't find a specific BHAV that ONLY exists in later versions of P4A - Alien Trigger Override. The fact that this BHAV isn't found, indicates to me that probably your P4A mod is too old, or you have two of them in different folders, or something silly like that.
Did you unzip the P4A mod, or is it still a zip-file? Because that would most certainly cause this effect!
I will also add, that ZZ is absolutely right: I most strongly advise you to make a special folder named 'zzzBoilingOil' or 'zzzBO' where you put ALL my mods, and no others.
I hope you'll find the cause of this problem soon, because alas, there's nothing that *I* can do about this one.