Examination is required. Please check cscart_storefronts and cscart_companies tables in the database (e.g. in phpmyadmin). These tables should contain correct URLs of this store-front
checked these two tables, both normal with correct URLs. Very strange problem.
Create test.txt file in the core of CS-Cart installation and try to call it from the browser
If it does not work, the issue is not related with CS-Cart
Thanks for your reply. Tried this, and it can open properly, and also, like we have 10 storefronts, 9 can open, only one returns 404 error, very strange.