Problem description
The value of the Expires request parameter is invalid.
Causes
You initiated a LiveChannel request that includes a signature, but the value of the Expires request parameter is invalid.
Examples
You initiated a LiveChannel request that includes a signature, but the value of the Expires request parameter is not an integer string.
Solutions
The Expires request parameter specifies the validity period of the signature. Set the Expires request parameter to a timestamp that follows the UNIX time format. It is the number of seconds that have elapsed since 00:00:00 Thursday, January 1, 1970.
For more information, see RTMP ingest URLs and signatures and Add signatures to URLs.