Good evening Brad and welcome back!
Thank you for reaching out to us.
We are sorry to hear about the calendar no longer working properly on your end. Yikes!
I am not quite sure how you did the server change (normally this would probably mean updating your database to reflect the paths of the new server) so it is hard to say exactly what is going on.
One thing you should know however is that your premium licenses for the Events Calendar Pro and Event Tickets Plus have expired.
Although these plugins will continue to work, they will only do so with a matching version of our free plugins (released around the same time).
In other words, you will have to “freeze” your the Events Calendar family plugins if you decide to not renew your premium product licenses.
As a first troubleshooting step I would try deactivating all premium the Events Calendar plugins, re-save the settings under the Events -> Settings -> General page AND re-save your permalinks.
Let me know how that goes.
Best regards,
Geoff B.