Hi,
Sorry for the issues you are having.
We attempted to fix another issue and caused this new problem.
We have rolled back the release and please use the Events Calendar 4.0.4 with the latest of Pro and Community Events.
If you have The Events Calendar 4.0.5 installed please follow these steps to manual downgrade it:
Manual Updates
And you can get the Events Calendar 4.0.4 here:
The Events Calendar
Let me know if you continue to have issues after downgrading.
Thanks