Fatal error. Cannot access to my WordPress login page

I installed ai1ec and activated. However, after clicking “Activate Plugin” button, this error message popped up on the page:

Fatal error: Call to a member function render() on a non-object in /home/public/wp-content/plugins/all-in-one-event-calendar/vendor/twig/Environment.php on line 300

After this, whenever I try to access my WP login page, this error message comes up and blocks me from logging in to my admin page. I don’t know what I can do to fix this error. Could anyone help me out with this?

Thanks,

https://wordpress.org/plugins/all-in-one-event-calendar/