Required fields in Jira
If you or your Jira administrator made some fields required to create a new issue (e.g. Components , Estimate , Epic , Platform and so on), Shake won’t be able to forward bugs to your Jira project because bugs arriving from Shake don't contain that data.
To resolve this, change settings for creating an issue in your Jira project so all those fields are not required any more. Once you're done, go back to Shake and try integrating your app with Jira again.
This always helps. If your problem still persists though, click the bubble in the bottom right corner and let's chat. We'd like to help you!