Hi Mark,
Sorry for the issues you are having. I can help troubleshoot them.
I took a look at your site and see what you mean about the donate button and the add an event button.
Those buttons are being included, by your theme and not The Events Calendar so I am not sure how to remove it or change it. I can provide some css to hide the buttons, but that is about it.
Let me know if you would like the css, otherwise the theme developer may have a solution already to remove those buttons.
Thanks