Hi ​@Abdjan, welcome to the Box Community!

This error typically occurs when the email or password entered is incorrect. Please note that passwords are case-sensitive. If you're having trouble logging in, we recommend resetting your password. You can do so by visiting: https://app.box.com/reset.

• Password reset links sent via email expire 3 hours after they are sent. If you need a new link after your current one has expired, visit https://app.box.com/reset to have another link emailed to you.
• If you do not receive an email from Box for this password reset, verify whether your Box account is associated with that specific email address or another email address.
• Check the spam folder in your email client for this email.

For further assistance with login, please submit a support ticket.

Looking forward to having this sorted out.