What is the reason for the error code 1215 popping up when entering Hot Dance Plaza? What should I do?

What is the reason for the error code 1215 popping up when IPTV users enter Hot Dance Plaza is the failure of RTSP request. The movie can not be played, please try again later or call customer service hotline 10000 for advice. IPTV (Blockbuster) is a new generation of interactive broadband video service launched by Telecom, which is accessed through the Telecom broadband line, and receives interactive Internet TV through eHome broadband box and remote control with TV as the terminal. It is equipped with a variety of interactive service functions, such as live TV broadcasting, time-shifting, re-watching, movie and TV on-demand, etc., which makes the TV have the functions of VCR, DVD, Internet, etc. at the same time. To learn more about the service offers click on the "official website" customer service 221 for you to answer.