If there is something wrong with the big cake pan, you can check the warranty period and after-sales service policy of the product. If the fault occurs within the warranty period, you should immediately contact the manufacturer or after-sales service center, explain the problem to them and ask for compensation. Provide relevant purchase vouchers and product information for them to verify and handle. The manufacturer will provide solutions such as maintenance, replacement or refund, and the specific compensation method will depend on the specific situation. If the fault occurs outside the warranty period, you can still contact the manufacturer or after-sales service center to explain the situation and ask for compensation. Although it will be more difficult to compensate in this case, we can try to negotiate with the manufacturer to solve the problem, such as seeking maintenance or partial compensation.