If you see this error message when attempting to upload a video (and you have enough storage space), it is most likely due to the source file size.
In this article:
What is causing the error?
The most common reason for this error is the source file size being above 200 GB or the video length is longer than 24 hours.
How to fix the upload error
This error can often be solved by compressing the source file or ensuring the video length does not exceed 24 hours.