MT4 invalid account error occurs when a trader cannot log in to the MetaTrader platform due to using the wrong login credentials (incorrect username, password, or server name), or by attempting to use a non-activated account.
The following method may help solve this issue:
- Check your password and account number.
- Check your server. For a live account, select “FXTRADING.COM-Live”.
- If you haven’t logged in for over three months, your account might have been archived. You may need to contact our team to re-activate your account. You can fix invalid account mt4 app problems in the same way on a desktop.