Complaint: If you have any objection to the paper grade, you can complain to the school. Complaints need to provide relevant evidence and materials to prove the quality and innovation of the paper, and explain why the paper was passed. However, please note that complaints generally need to be supported by clear evidence, otherwise they may not be accepted.

Revise and resubmit: If the paper fails due to insufficient quality or some improvements, you can consult your tutor and make revisions. In the process of revision, we should take seriously the opinions and suggestions put forward by the tutor and improve and perfect the paper. After the revision is completed, you can resubmit the paper and wait for re-evaluation.

Seek the help of a tutor or a professional: If you are not clear about the problems in the paper, or don't know how to revise and improve it, you can seek the help of a tutor or a professional. They can provide some guidance and suggestions to help you finish your thesis better.