Where is the the link to the theme options?

So you don’t see the link to “Calendar Themes”? Do you have any one of our add on installed?

No, I don’t see the events tab which has the “Calendar Themes” either
I have
All-in-One Event Calendar Extended Views

But is the plugin active?Do you have an “Events” menu item in the admin dashboard? https://take.ms/8fpa7

Yes the plugin and the addon are both active. I do not have an “Events” menus item in the admin dashboard.

Are you logged in as a user who is an administrator of the site?

yes

Then i really wouldn’t know what to suggest. Try to disable all other plugins and to switch to twenty fourteen Theme and see if it help.
Also try to deactivate and reactivate our plugin

I had added a button to the admin with an index of 6, and this replaced the events button. So I took out the index number out of add_menu_page of the admin_menu action for my new button and this fixed the problem

Good to hear you fixed that, i’ll keep that in mind if it happen again