If you get an invalid account | authorization failed | unauthorized error message, this would usually mean that you are connected to the wrong server or you have entered the wrong password.
When selecting the server, please make sure you select mt4.clover4x.com | Clover4x-Live as the server when logging in to a Live Account or demo.clover4x.com | Clover4x-Demo to log into the demo account.
If the server selection is not the issue, try resetting your MetaTrader password on the Clover4X back office.
Click on the My Accounts tab.
Click on the View button on the account in question.
Click on the three dots (...)
Click on Change Password and Copy Password and the password will automatically reset for you.