Problem description
The signature in the LiveChannel request has expired.
Causes
OSS validates the signature at the moment it receives the request. If the signature has already expired at that point, OSS rejects the request.
Examples
You initiated a LiveChannel request that includes a signature, and specified the validity period of the signature by using the Expires parameter. However, the signature has expired by the time OSS receives the signed request.
Solutions
Regenerate the signed URL and retry the connection. To prevent this error from recurring, increase the Expires value so the signature remains valid for the entire expected push duration.
The Expires parameter must be a Unix timestamp — the number of seconds elapsed since 00:00:00 UTC on January 1, 1970.
For more information, see RTMP ingest URLs and signatures and Add signatures to URLs.