I did have the crash issue whilst working on one of those files I dont recall what one it was now but I made sure that was fixed before I uploaded them all it was, was an invalid reference to a page that didnt exist and now that was not my bad programing it was somthing that the UI builder decided to slot in from out of the blue
its getting real go at doing that sort of stuff lately...
So I would say yes your problem would be with the notes page you been messing with missed a </Page> tag or </> out I would guess by the sounds of it.....
Whats that sound I can hear? ........... Its loads of people calling out from WoW wanting you to start playing that again lol