Benjamin on "[Plugin: All-in-One Event Calendar] Cannot view next month"

On the calendar page (agenda or calendar view), each time a user tries to view the next week/month, it gives the error

Something went wrong while fetching events.
The request status is: 403
The error thrown was: Forbidden

However, after refreshing the page, it displays the next week/month.

Not using any caching plugin on the website.

https://wordpress.org/plugins/all-in-one-event-calendar/

Hi,

Do you use some security plugin, "iThemes Security" or similar?

I have had Wordfence plugin on these sites for the past couple of years but have never faced this issue before.

Do you still use Wordfence plugin?

Yes, on some sites, we use Wordfence and on others we use All-in-one Security.

Have you tried to disable these plugins?