I’ve lost my blog by just adding a plugin

I cannot understand it i just install a to commentator plugin widget and m\now everytime i access my dashboard or my blog this is what i got “Fatal error: Cannot redeclare ns_substr_ellipse() (previously declared in /home/thefree/public_html/wp-content/plugins/show_top_commentators/show_top_commentators.php:33) in /home/thefree/public_html/wp-content/plugins/top-commentators-widget/topcommentators_widget.php on line 21″now i cannot even access my blog url i got the same message please help me to restore my blog !!! my blog url is https://thefreemoneyhub.com