fix

Helius

2022-06-06 1bb270fa3160ebf07081fc4c08668d514bca0014

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

@@ -20,4 +20,6 @@
    int allowanceCnt(String address);

    int decimals();

    BigInteger blockNumber();
}