Minecraft 1.21.1
Seed: 7687809446906757477
Ars_Nouveau 5.1.0

I tried for hours to find any wilden structures but I didn't succeed. After that, I tried with structure compass mod and in told me that it can't find any structure. What to do?

Only the guardian den appears to have been broken. The stalker and hunter den could be found. They require a forest biome.