Catapult crashes

Every time i flick the switch for a catapult launch my sim crashes 
I got the AC and planel with the switch from here: AC: http://www.simviation.com/fs2004military13.htm fourth one from the top
Panel :http://www.simviation.com/fs2004panels4.htm last one at the bottom

I got the AC and planel with the switch from here: AC: http://www.simviation.com/fs2004military13.htm fourth one from the top
Panel :http://www.simviation.com/fs2004panels4.htm last one at the bottom