The reason why Red Sleeves Reading could not be played was probably due to the following reasons: 1 Network connection problem: Check whether the network connection is good and ensure that the network connection is normal. 2. Software problems: Check if the Red Sleeves Reading Software is installed correctly and if it has been updated or upgraded to the latest version. 3. Equipment problems: Check whether the equipment is connected normally or whether there are damaged equipment or hardware problems. 4. Browser problems: Check if the browser has a firewall or security software to restrict access to the Red Sleeves Reading website. Setting issues: Checking if the device or browser settings are correct may require closing other applications or browser windows to make room. If the above methods cannot solve the problem, it is recommended to contact Red Sleeves Reading's customer service or technical support team for more detailed help.