When using the DaLong service, the following conditions may result in a transfer "transaction failure" or "package timeout":
a) insufficient wallet balance;
b) insufficient transaction fee;
c) the blockchain execution contract code failed;
d) exceed the amount of payment required by the regulatory authorities, DaLong or laws and regulations;
e) technical failures such as networks and equipment;
f) The blockchain network is congested, faults, etc., causing the transaction to be abandoned;
g) Your address or counterparty address is identified as a special address, such as a high-risk address, an exchange address, an ICO address, a Token address, and so on.