Title screen problem - yellow text shows the same thing everytime: "demo"

the yellow text in the title screen says "demo" even if i hav the normal minecraft version. i tested it in some versions and made screenshots. it is since my account somehow logged of after a launcher update but i didn't saw the login screen. so i logged in by clicken in the top right corner. i think it went that way but i am not shure. i just disvovered that recently.