Hello George,
Thanks for reaching out!
I’m sorry you are experiencing issues. Let me try to help you with this.
I checked your site – main page and calendar page – and both showed November for me straight away.
I see that you are using a caching plugin. It can be that a cached version of the page was served for you. Deactivate the caching plugin or exclude the pages you are having an issue with and check if that changes the behavior.
Let me know how this works out and we can dig further if needed.
Cheers,
Andras