230000 is a generic code for "RTSP asserted" and the message is telling what code and which line.
According to the RFC for RTSP:
19.1.6. C.1.6 Time of availability
The "t=" field MUST contain suitable values for the start and stop
times for both aggregate and non-aggregate stream control. With
aggregate control, the server SHOULD indicate a stop time value for
which it guarantees the description to be valid, and a start time
that is equal to or before the time at which the DESCRIBE request was
received. It MAY also indicate start and stop times of 0, meaning
that the session is always available. With non-aggregate control, the
values should reflect the actual period for which the session is
available in keeping with SDP semantics, and not depend on other
means (such as the life of the web page containing the description)
for this purpose.
Check the RTSP headers and investigate the streams where the 't'
value is not equal to 0.
The SG is reporting that an assumption/pre-condition here that this value
should be 0 for on-demand streams.
The RTSP header should be t=0; 0