Error: Cannot insert the value NULL into column 'assigneeId'

Q&A
1

Hello, I need help about this error message.

Cannot insert the value NULL into column 'assigneeId', table 'bonita_journal.dbo.flownode_instance'; column does not allow nulls. INSERT fails.

We received this error message when we call BPM API. The old staff was quitted without transferring knowledge. I'm trying to fix it but I don't know where to start. 

The API we call and may be the cause or this error is:

/API/bpm/process/:processId/instantiation

 

Thank you in advanced :)

2

Does the first task of the process use an actor filter ?