Thanks for the reply.
For ecommerce I am using woocommerce.
For general functionality, Im using some 33 plugins (do I need to name them all?)
As far as this issue is concerned, I was trying to change the permalink structure from Ugly to Pretty but after doing so, from the backend, the links within my website would return with a 404 error. I returned back to ugly permalinks, and while trying to fix the issue of 404 in pretty links structure I installed 1-2 plugins. But when I experienced the current issue, I uninstalled those plugins. I dont remember the names as well.
