single blog post doesn't open / no read more

hi, i can’t open a single post to read all of it. seems like there isn’t even a new site for it. when i click on “view”, in the admin menue for all posts, i get to the regular blog site, not to the single post. the same happens when i click on the image. also the read more option doesn’t work. the text just stops, where i added it (TRY 2 – on the image)

looks like this: IMG

hope someone can help me fix the problem!