We configured Service Hooks in Azure DevOps to invoke Jenkins job when a pull request is created. The service hook fails with the following response:

Status Code: 400
Reason Phrase: Bad Request
HTTP Version: 1.1
Headers:
{
Connection: keep-alive
X-Content-Type-Options: nosniff
X-Error-Message: Object is null (through reference chain: net.sf.json.JSONObject["team-event"]>net.sf.json.JSONObject["resource"]>net.sf.json.JSONObject["repository"]>net.sf.json.JSONObject["project"]>net.sf.json.JSONObject["defaultTeamImageUrl"]->net.sf.json.JSONNull["empty"])
Date: Mon, 03 Dec 2018 15:37:36 GMT
Server: nginx/1.8.1
Content-Length: 10316
Content-Type: text/plain; charset=utf-8
}