Good evening Mong and welcome to the Events Calendar forum!
Thank you for your interest in our products. It’s truly appreciated.
However, please note that we do not offer support for our free plugin in this premium add-ons forum.
But, the good news is that you are still welcome to consult this forum to your liking and browse it for solutions, snippets and tutorials.
If you don’t mind, in the future could you please post your support questions here: https://wordpress.org/support/plugin/the-events-calendar ?
With that in mind, my first recommendation would be to switch the setting found in Events -> Settings -> Display (Events template) to “Use default Page template”.
Best regards,
Geoff B.