this world was created in a snapshot which I think was a 1.17 snapshot, where you had the extended height and depth and later couldn't load those worlds in newer snapshots, I don't think in 1.17 either. then this happened what you see on the screen shot.
MC-243240
loading a world that was previously temporarily disabled, world blending
Resolved
Invalid
0
Invalid / Won't fix for the same reason as MC-239878: upgrading from these snapshots isn't supported.