问当我使用postman访问ejabberd的注册api时，我收到错误AccessRules: Account无权执行该操作

EN

What version of ejabberd are you using?

17.04

What operating system (version) are you using?

ubuntu 16.04

How did you install ejabberd (source, package, distribution)?
package

What did not work as expected? Are there error messages in the log? What
was the unexpected behavior? What was the expected result?

我使用postman向ejabberd register api发出HTTP请求。ejabberd设置完成，管理员在url - http://localhost:5280/admin上正常运行。

http请求Url为- http://localhost:5280/api/register

Body -{ "user"："bob"，"host"："example.com"，"password"："SomEPass44“}

Header - {"key":"Content-Type"，"value":"application/json"，"description":""}

响应-{ "status"："error"，"code"：32，"message"："AccessRules:账号无权执行此操作。“}

我搜索了很多，发现它需要在ejabberd.yml文件中做一些修改。我的yml文件可以在所附的链接上找到。

THIS LINK CONTAINS YML FILE

任何帮助都会很好。