ApplicationException: java.lang.NullPointerException

Any idea why I’m getting this error : [0020] W3001 : Error while executing plugin: HTTP/1.1 500 ApplicationException: java.lang.NullPointerException ApplicationException: java.lang.NullPointerException ?

My workflow was working as it should and generating output until I made an update to text in PlanetPress Connect Designer and sent the update to workflow.

Hello,
Similar issues in the past have been linked to having different versions of Connect. Please make sure you are using the same version of Connect on all systems.
Let me know if that does the trick.
If problem persists, please open a support ticket with your regional support team.

Thanks