You can head to the following link and input the email used to create your Novaquark account and resend the activation email to your inbox: https://www.dualuniverse.game/resend-confirmation
Should you still not receive an email after some time, please do not hesitate to contact our Support team for more assistance: https://support.dualthegame.com/hc/en-us/requests/new?ticket_form_id=360000815499