Server 500 with no extra info

@mpociot

Sorry I appear to be making your website crash with a 500 error and no further information.

I'm attempting to send a 24.5meg file for translation but it crashes out with no error logs.

I'm more than happy to pass on extra information/the file if you need any for debuging. Apologies if it caused any issues for yourself.

首先，使用一个 24.5 MB 的文件复现翻译上传，并检查服务器错误日志，因为报告称请求返回 500 且没有记录错误。完成的标准是上传不再无提示地失败，或者失败时产生足够的诊断信息以确定原因。

由索引模型根据 Issue 内容生成。