The error log is helpful. Could you tell us what version of Mautic do you have? Also, could you make a screen shot of the campaign builder graph of campaign with ID = 3 ?
Sure.
Version: v1.2.2
One other thing; could you let us know which event in that screenshot is id #8? You might have to look at your database in the campaign_events table to get the ID of the events themselves.
Ok, I found this:
ID: 8
lead.changepoints
name: +1P
Is this what you want to know?
Anyone can help?