无法上传文件

[Faultiness]

环境：Ubuntu 18.04
版本：Release v0.4.19

在命令行中使用./cowtransfer-uploader text.txt上传文件报错，日志如下：

2021/09/14 02:07:12 config = &{token: parallel:3 interval:15 prefix:. debugMode:true singleMode:false version:false keepMode:false authCode: blockSize:1200000 hashCheck:false passCode: silentMode:false}
2021/09/14 02:07:12 files = [text.txt]
2021/09/14 02:07:12 retrying: 0
2021/09/14 02:07:12 postBody: map[totalSize:9]
2021/09/14 02:07:12 endpoint: https://cowtransfer.com/api/transfer/preparesend
2021/09/14 02:07:12 map[Authorization:[] Content-Type:[multipart/form-data;boundary=704d017b3722dc46969bd7704fdeb869c4a7c518577234efea6230011164] Cookie:[] Referer:[https://cowtransfer.com/]]
2021/09/14 02:07:12 do request returns error: Post "https://cowtransfer.com/api/transfer/preparesend": stream error: stream ID 1; INTERNAL_ERROR