When trying to play minecraft with my xbox game pass account it will only show that I can...

I cant login onto the mojang site using my microsoft account. It says unknown email or password when im certain its correct. I can login onto minecraft.net and it shows my minecraft profile and my xbox account information. When I try to launch minecraft it say that I need to buy the app again and when I refunded the minecraft launcher it was removed from my device. I had only cancelled a game pass subscription.

Hi Raccoon, I hope you're doing great out there despite the issue that you're experiencing. I am an Independent advisor and I am here to help you in regards to your concern.

To play Minecraft Java Edition with Game Pass on PC, you'll just need to install the Minecraft PC Bundle from the Xbox app for PC (or from the Microsoft Store), make sure that it's the launcher that you have installed so you can play the game.

Here is the thing, on my xbox when I go on the ms store I press on sea of thieves and it has two options ( I dont have game pass ):
Launch
you can play this
and Buy to own £34.99
I have checked the only alternative account and It has purchased Minecraft: bedrock edition 5 years ago.
Would the serial number of the xbox show it came with sea of thieves?

I can normaly play EA games from game pass for example "Unravel Two" but I can't play games from game pass via xbox app. When i try to play game from game pass via only xbox app. I can't synchronize data and i have to log in, and then the xbox app shows me a code 0x89235107.

I own the game pass and the xbox live when i sign in on my account and make it the home xbox i have all the gold etc but when i sign on on her profile it isnt there. I am not too bothered about the game pass, she is trying to play games i have previously
bought digitally like minecraft but it wont load