Hi,
The “Manual condition” field is blank. There is a field but it has no value; Only the placeholder text.
Interestingly now that I am looking at this I see the “manual condition” isn’t needed although a blank field is there awaiting input.
I clicked the X next to the field deleting it. Updated and reloaded the pages and the problem error is gone.
I don’t know if the field was always there or if someone may have thought to add one and didn’t put in a value.
I’m guessing this is close to resolved. I think it is best if the plugin can account for empty value here just to be sure.