The “invalid account” / “authorization failed” / “unauthorized” error messages are encountered when you enter your password incorrectly or when you select the wrong server.
Please make sure you select mt4.ospreyfx.com:443 (OspreyFX-Live) as the server when logging in to a Live Account. For your Demo Account, the selection should be demo.ospreyfx.com (OspreyFX-Demo).
If the server selection is not the issue, please try resetting your MetaTrader password. This can be done from the “My Accounts” section.
Step by step guide:
Click "My Accounts"
Click "View" on the account in question
Click "Copy" to copy the password and click "Submit" on the system generated password