Hi,
Thanks for using our plugins. I can try to help out here, but I am limited in resolving theme and plugin conflicts.
We do not change a sites theme so I am not sure why it is different.
It could be because our event views of month, list, etc, are archives and not pages.
The first thing to try is changing the event template.
Head to this page:
Events > Settings > Display Tab
Then change this setting:
Events Template to Default Page Template
Or to another other setting in the dropdown.
Let me know if any of those help.
Thanks