Marlin firmware can not be compiled

Hello forum community I am new here, I have owned two 3d printers for about 4 years, both running Marlin.
Now to my problem:
I can’t manage to create Marlin for a SKR BTT 1.4. About arduino ide does not work for 32 bit board and in VsCode I only get errors because he does not know the board.
I have also searched Youtub but unfortunately without success.
Marlin cannot be set so that it runs without errors.
One more thing about me, I’m not a computer scientist, but I’d be happy to send you screenshots if it helps.
Maybe someone can help me to set up the board correctly.

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