Notable to see dashboard

Hello,
I recently tried to install ‘Infinite SEO’ plugin, it got installed but then when I went to activate that plugin following error showed up
” Fatal error: Call to undefined function user_can_see_seo_metabox() in /home/content/p3pnexwpnas01_data02/45/2214045/html/wp-content/plugins/wpmu-dev-seo-addon/wpmu-dev-seo-addon.php on line 85″

Now I’m not able to visit my dashboard or any other setiings page for that matter.
I’m stuck! Please help at the earliest
Website: http://www.breedideas.com