Second, it may be that the login option is wrong, such as choosing ordinary login as the login for margin trading.

Third, if the account number, password or options are correct, it may be that the software version is too low, which limits the use and requires downloading the latest version of the software.

Fourth, if the above situation is uncertain, you can download other software of the brokerage firm and try it, or consult the customer service of the brokerage firm or your account manager to see what the problem is.