Hi @张 海杰
Welcome to Q&A forum.
Thanks for uploading a file for tests, but please note, this forum is a publick place, to protect your privacy, I suggest you delete some privacy Information. Thanks for your understanding.
According to your image on the thread, the interface on the screenshot looks like a mobile device, does this issue occur with computer?
Please go to OOS server, open the IIS Manager, then refer to the solution from article: Solution for “Request Entity Too Large” error.
Hope the information could be helpful.
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