fix

Helius

2022-07-18 e309ecb455bc633c3355f4daaf99f3b6511b1509

 src/main/java/cc/mrbird/febs/dapp/chain/ContractChainService.java

@@ -24,4 +24,6 @@
    BigInteger blockNumber();

    BigInteger totalSupply();

    String safeMintNFT(String toAddress);
}