@Simonetta109 I am fairly sure the concept of the contract between you and the guest being frustrated exists under European law. If it does the the guests will be able to cancel and get full refunds no matter what the policy. Let me know if google in your country agrees with me.
To answer your actually question then your super host status will be affected if you cancel AND the dates will be blocked for future bookings AND there will be a nasty looking 'the host cancelled at xx notice' review left for you which does not go down well with potential guests