You can occasionally see this error message when you click a link in a confirmation email from HitBTC. This means that the link expired. Confirmation links have a limited lifespan, different for different types of confirmations. For example, a withdrawal confirmation link is only active for an hour, so when you click the link that has expired, you will see the “Invalid token” error.
You will need to re-do whatever action you were trying to execute, and when the confirmation email arrives, please make sure to click the link promptly.
Note: If our emails are delayed on their way to your mailbox, check your spam filter settings, try whitelisting our domain, or contact your mail service support team.