payload: {"action":"opened","issue":{"url":"https://api.github.com/repos/education/classroom/issues/2379","repository_url":"https://api.github.com/repos/education/classroom","labels_url":"https://api.github.com/repos/education/classroom/issues/2379/labels{/name}","comments_url":"https://api.github.com/repos/education/classroom/issues/2379/comments","events_url":"https://api.github.com/repos/education/classroom/issues/2379/events","html_url":"https://github.com/education/classroom/issues/2379","id":494367345,"node_id":"MDU6SXNzdWU0OTQzNjczNDU=","number":2379,"title":"Roster Management page 500 Internal Server Error","user":{"login":"fly51fly","id":128885,"node_id":"MDQ6VXNlcjEyODg4NQ==","avatar_url":"https://avatars0.githubusercontent.com/u/128885?v=4","gravatar_id":"","url":"https://api.github.com/users/fly51fly","html_url":"https://github.com/fly51fly","followers_url":"https://api.github.com/users/fly51fly/followers","following_url":"https://api.github.com/users/fly51fly/following{/other_user}","gists_url":"https://api.github.com/users/fly51fly/gists{/gist_id}","starred_url":"https://api.github.com/users/fly51fly/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/fly51fly/subscriptions","organizations_url":"https://api.github.com/users/fly51fly/orgs","repos_url":"https://api.github.com/users/fly51fly/repos","events_url":"https://api.github.com/users/fly51fly/events{/privacy}","received_events_url":"https://api.github.com/users/fly51fly/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2019-09-17T02:31:41Z","updated_at":"2019-09-17T02:31:41Z","closed_at":null,"author_association":"NONE","body":"**Describe the bug**\r\nI tried to access Roster Management for \r\nhttps://classroom.github.com/classrooms/55371079-principle-of-web-search-2019-classroom\r\n, then I got the 500 Internal Server Error\r\n\r\n![未命名](https://user-images.githubusercontent.com/128885/65006631-390b1600-d936-11e9-9eec-a6409bd7bd15.jpg)\r\n\r\n**To Reproduce**\r\nJust access Manage Classroom - Roster Management\r\n\r\nTHX\r\n\r\n"}}
other: {"actor":{"display_login":"fly51fly"}}