检查要使用的get_last API调用的文档.似乎您没有提供正确的参数: https://docs.ejabberd.im/developer/ejabberd-api/admin-api/#get-last

Check the documentation of the get_last API call you want to use. It seems you are not providing the correct arguments: https://docs.ejabberd.im/developer/ejabberd-api/admin-api/#get-last