Please see the below explanation from Northern regarding the service suspension:
https://media.northernrailway.co.uk/news/northern-explains-barton-line-timetable-decision?fbclid=IwAR1r0h_VfeIVfCFEl7uy5ondSjVpS18gg5GxkncaKLw0QoatQGH2rMR-1gM
