Good evening Monica and welcome to the Events Calendar Support forum!
Thank you for reaching out to us.
We are sorry to hear about the recurring event feature not working as it should.
I would love to help you with this topic.
As a first troubleshooting step, could you please provide us with your system information in a private reply ? (following the instructions found in the link)
As a second step, could you please go through the following: https://theeventscalendar.com/knowledgebase/fixing-http-404-errors/ ?
Let me know how that goes.
Best regards,
Geoff B.