WyBuild Failed

I am trying to upload my update and keep getting this message

Failed to Upload UpdatesUnable to write data to the transport connection. An existing connection was forcibly closed by the remote host. Skipping the next 2 files

Why I am getting this message and how do I fix this?

Thanks

Probably credential mismatch. Hard to say. Provide more information and we might be able to help you: https://wyday.com/limelm/help/faq/#useful-reports