Classes duplicating in table

Hello,

I’ve got a class schedule up on my website, but for some reason it’s making a triple copy of each class (www.hanumanthaiboxing.co.uk/prices). It’s only been like this in the past month, before that it was fine. Can you help me fix it?

Thanks,

Simon

https://ww.wp.xz.cn/plugins/weekly-class-schedule/