Page can’t be found 404

Hi, I’m having problem with some events displaying error “Oops, that page can’t be found”. Example on website: https://www.paramounticeland.net (Month or Week view for Friday, May 5th). I have 5 freestyle session events. When I try to access each event from the month or week view, I will only get a proper display if I choose the very first event at 09:15. Each other event displays the error “page can’t be found”. Note…all these events were entered as event series repeating weekly starting at 09:15 etc. with an ending date in 2020. Thank you.

Ted Hiler