感谢@awiebe，我找到了确切的错误.这是

Thanks to @awiebe I found the exact error. It's

格式错误的 UTF-8 字符，可能编码不正确

Malformed UTF-8 characters, possibly incorrectly encoded

谢谢大家，我从另一个问题中找到了解决方案.Laravel 中的格式错误的 UTF-8 字符，可能编码不正确"

Thank you all, I found a solution from an another question. 'Malformed UTF-8 characters, possibly incorrectly encoded' in Laravel