Activated a child theme and wordpress is now un-accessable

So I made a child theme, and then once I activated it, every WordPress file began to display simply “0”. even Login.php is showing it, therefore I have no way to access my dashboard and de-activate this child theme which is potentially causing the problems. Below is the child themes style.css.

“/*
Theme Name: F8 Lite Childish
Theme URI: https://www.me.com/design
Description: A Child Theme of F8 Lite
Author: me
Author URI: https://www.me.com
Template: f8-lite
Version: 1.0
*/
@import url(https://www.me.com/wordpress/wp-content/themes//f8-lite/style.css);
“

Any help on the mater would be much appreciated!