Network abnormality. My collection of KuWo Music failed because of a network abnormality. The network abnormality caused the KuWo Music server to be unstable, so I could not collect it. I needed to disconnect from the network and reconnect, and then collect it again. Kuwo Music has a music library of nearly 20 million songs, and has signed exclusive copyrights with more than 100 record companies. It also owns The Voice of China Season 1, The Voice of China Season 2, The Masked Singer, Burning Boy, and Music Master. The exclusive copyright of variety shows such as classes.