Bambu Studio is telling you the problem: you downloaded a .3mf created with a different printer from yours. change that.
also check the plate type and the filaments.
.3mf files contain profiles with specific settings, I have a X1-C with AMS and I used certain filaments, which are then saved in the file I created and uploaded.
I strongly suggest you watch some YouTube videos about Bambu Studio and read the Bambu Lab wiki to learn things like this to be able to print what you want without issues