I was in the middle of configuring the event type - was going back and forth changing setting & testing until I found something that I liked.
One of those times I change the event excerpt to column 1 when I thought I changed it to column 2. When I went back to redo it I got this message after updating:
Request Entity Too Large
The requested resource
does not allow request data with POST requests, or the amount of data provided in the request exceeds the capacity limit.
I refreshed. Loged out and back in. I deactivated and reactived the plugin. I changed settings again but I'm still getting the same error message.
I've never seen this before & don't know what it means. Anyone else get this error message?