WooCommerce plugin won't uninstall / Entire site not working

Hi– I installed the WooCommerce plugin on my site, http://simply-showbiz.com/blog/ and the site started to get buggy, so I deactivated the plugin and removed the files. However, If you click on any link on my site, it directs the user to a 404 error page or the now non-existant store page.

http://simply-showbiz.com/blog/store/ should not be there and I can’t even locate your plugin in my plugin folder via FTP.

Please advise, as now all of my archived links on Twitter and Facebook give the user a 404 error or the store page.

Thank you,
Michael

https://wordpress.org/plugins/woocommerce/