Train service to Kurashiki

Hi,
Okayama station to Kurashiki station, according to Navitime, there is a service delay to the JR Sanyo Main Line. This has happened since yesterday when I checked. Why is this so and what is the alternative to get to Kurashiki from Okayama then?
Thank you.

https://global.trafficinfo.westjr.co.jp/en/chugoku/

Probably navitime has not updated. JR West official website only shows delays in Yamaguchi. No where else.