Hi Assure, is this happening with all pending events?
I suggest you try these steps:
1. Make sure you’re running the latest version of WordPress.
2. Make sure you’re running the latest version of the Events plugin (2.0.9) and the Events PRO plugin (2.0.9 again).
3. Try increasing the PHP memory for your website: http://www.dailyblogging.org/wordpress/increase-wordpress-memory-limit/
4. Try the plugin deactivation route: deactivate your other plugins one-by-one, until just The Events Calendar/PRO are active, to see if it’s a conflict on that end.
I know you say you cannot do #4 but if nothing else works this is what you must try because there’s nothing else that we can if we cannot rule out a plugin conflict. Please let me know how that goes.
Thanks,
Jonah