What is the name of the domain?
没有域名
What is the error number?
没有错误代码
What is the error message?
无法在“Node”上执行“insertBefore”：要在其前插入新节点的节点不是该节点的子节点。
What is the issue you’re encountering
设置中无法保存自己的设置
What steps have you taken to resolve the issue?
没有
What are the steps to reproduce the issue?
不知道
