tehne and the new teahne on mincreaft

i still get the error to make models to make even try to find a way to fix it how sometimes it picks not the file and it still also crash  however i do everything right why can not make model of java and models so pls someone get me pls i try find nothing about it only i can do is show it in video but then you won't get me so how else can i do 

*pls stop say of my English is bad i can't be helped even i keep learning i simple problem with the text line make words same problem in my own country that speaks the Netherlands i just don't know how else i can ask help if keep up with this problem to not see it i have reading problems even still wear glasses*