Minecraft Dungeons Launcher change game deleted?

I bought Minecraft Dungeons Kurtz after release (Heros Edition) and finally noticed that Crossplas was activated and wanted to play with friends on the Ps4 which worked. Now I wanted to start the Dungeons Launcher today then it says that it can only be done via Minecraft Launcher but the Minecraft Launcher says that I have to buy it again do you have a plan what I can do?

Go to minecraft support.

There's nothing suitable, but I'm trying to install the launcher again via microsoft

Do you know if and how you can link microsoft and mojang accounts?

habs probem gone but now must always re-register account

You can't do it yet, but soon.