Cant play full version of Minecraft: Java Edition despite of buying it

Recently my sister Ignis22134 (Microsoft user) bought a Minecraft Java Edition (Im sure it is Java edition), but the launcher still want her to buy a product and playing something else then demo is impossible. We already have had this problem before, two or three days ago, but it seems like its back again and she cant play.

 

(the green sign on the middle "zagraj demo" says "play demo"