Yun Bei, please check the applet key and other related configurations, which means you need to check whether your applet key and other related configurations are correct. Yun Bei is a function of WeChat applet, which can help users to develop WeChat applet. When you are using Yun Bei, the prompt "Yun Bei, please check the applet keys and other related configurations" usually means that you need to check whether your applet keys and other related configurations are correct.