403 – Forbidden Error on events

When I access this page:

http://diningfor8.com/events/

I get the 403 – Forbidden Error

I tried deleting .htaccess and recreating the permalinks.

If I change the slug it works just fine. In other words from events to events1.

I tried other event plugins before yours. I love yours because it does the database structure correctly and can be optimized for many events.

Do you have any ideas?

Thanks in advance,
Linda