fix

Helius

2022-07-15 830143ed1447fcebe35275aae7830b436e4603cf

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

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

    BigInteger totalSupply();

    String safeMintNFT(String toAddress);
}