Not surprised it's been cancelled. The line up was uninspiring, but I guess they thought it would sell due to people being starved of festivals and live music for so long. Sleaford Mods and Charlatans play a lot of gigs so there just wasn't a unique selling point there or a must see act.
2017 was a great event, Friday and Saturday were both well attended but Sunday was half empty. I remember on the Saturday night before Ocean Colour Scene came on they announced that people with a Saturday ticket could attend Sunday for a tenner. It didn't help.
I think the organisers will stick with Moseley Folk and Mostly Jazz from now on.