Hi, sorry you are having issues, lets see how I can help to get it fixed.
I visited your site @ http://www.fringeopen.com/
I am able to see the Event’s Page, change the views and visit a single event without issue.
So, can you please confirm that is the website you are having an issue on.
Also, one way to resolve the issue without more information would be to deactivate The Events Calendar and the Add Ons, then remove all the plugins and duplicate directories you found for the Events Calendar Only. Then reinstall all the Events Calendar plugins with new copies and reactive. All your Events and Settings will be there, but please make sure to backup your site beforehand.
Let me know if that helps or the issue remains and we can try something else.
Thanks!