All-in-One Event Calendar corrupted WP Dashboard

After installing and enabling the premium version of All-in-One Event Calendar I no longer have access to “all pages” “plug-ins” or other menu items from my WP dashboard.

I am running the latest WP (I upgraded last night) and the latest “All-in-One Event Calendar” again I upgraded to latest version last nigh.

Additionally the springstolife.com/calendar is now my home page. This was not my intent.

Further details:
My dashboard ONLY displays the following menu items: Events, Media, Appearance, Users, Settings, WP Member.

The following are not visible/accesible:
Pages: all pages, new page
Plug-ins:
and I don’t remember what all else but nothing else is visible.

Of course since I don’t have access to plugins uninstall and plugins disable menu I can neither uninstall nor can I disable this plug in from the dashboard.