Negotiation: First, you can contact the other party actively to discuss the cancellation or invalidation of the certificate. If the other party agrees, you can withdraw the document and draft a new one.

Legal channels: If the other party refuses to negotiate or does not cooperate, you can consider solving the problem through legal channels. Specifically, you can apply to the local people's court for revocation or invalidation of the certificate, and provide corresponding evidence and reasons. If the court finds that there is coercion, fraud, etc. In the certification document, it can decide to invalidate or cancel the document.