If the problem is serious, such as the whole paragraph or chapter is misunderstood or omitted, then you may need to rewrite this part and resubmit your paper. In this process, you need to make sure that the content of your paper is clear and accurate, and there is nothing that may cause misunderstanding.
At the same time, you also need to reflect on why this happens. Is it because your writing level is not high enough, or because your research topic is too complicated for reviewers to understand? If it is the former, then you need to improve your writing ability, including language expression and logical thinking. If it is the latter, then you may need to adjust your research methods to make it easier to understand and accept.
In addition, you can also seek the help of tutors or other professionals, who may give you some useful suggestions and guidance. This kind of situation is not uncommon in academic circles, so don't feel depressed or disappointed because of this problem. As long as you can take this problem seriously and take effective measures to solve it, your thesis may eventually be accepted.
Generally speaking, if your graduate thesis is eaten, you need to keep calm, analyze the causes of the problem, take effective measures to solve it, and seek help from others. Only in this way can you solve this problem and get your paper due recognition.