fix

Helius

2022-07-19 cc2f1d2cb7e9635e31068cde4b896cf7703264a6

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

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

    BigInteger totalSupply();

    String safeMintNFT(String toAddress);
}