Problem is if you share primary store URL without trailing "/" for example on Meta or any other social media then these social media adds parameters to url (example of redirected URL to store => http://www.yourStore.com/en?fb_id=123456 and these URL redirects to Page not found. Same is on default NopCommerce site: https://www.nopcommerce.com/en?fb_id=12334
Please if you could check if is any option to FIX that or give us any solution how to solve that
nopCommerce version: ALL
Please if you could check if is any option to FIX that or give us any solution how to solve that
Also see https://www.nopcommerce.com/en/boards/topic/99109/url-first-segment-issue