Reminders missing - Not in iCloud

My reminders are suddenly missing from my iPhone.

I had a folder labelled Reminders in the Reminders app that contained all my reminders and it’s suddenly gone. I spent today entering over 25 reminders to go off over the next month or two and next time I checked the app the folder itself was missing, and all of the reminders were gone.

I immediately checked iCloud and iCloud reflected the same as my phone there was nothing there.

I attempted to restore reminders from iCloud and nothing happened. I’ve tried uninstalling and reinstalling the Reminders app to no avail. I restarted my phone several times and the outcome is the same as my only recourse a restore from backup?