Battle.net API: auctions api endpoint is not working properly

[Aokan-twisting-nether]

I followed the documentation to get auction dataset with api.

…/data/wow/realms/625/auctions?namespace=dynamic-eu&locale=en_US&access_token=XXX api endpoint is not working properly

I see this error code:
{“code”:404,“type”:“BLZWEBAPI00000404”,“detail”:“Not Found”}