using https://devnet.helius-rpc.com/?api-key=xxxxx as RPC provider.
https://developers.metaplex.com/token-metadata/fetch#fetch-all-by-creator
I want to call the fetchAllDigitalAssetByCreator function of metaplex, but program blocked for getProgramAccounts, if you need this program please contact helius support
but fetchDigitalAsset it is work.