I have got an opencart (3.0.3.

So i created a subdomain as ww1.domain.com and copied all the databases and files.
I made the config file settings and then i had two different stores on the same host as everything is seperated like database, files, dashboards, so its not a multistore.
ww1 is only for developement things, i test anything on that store and i put it to www store.
The problem is somethings getting weird on the www store when i make the ww1 store live.
For example; i have a local credit card payment extension which is working with 3d transactions.
It's having problems with callback after the 3d authorization.
After the client enter the 3d password, it should callback to opencart and then take the payment but the host doesnt response on that callback url.
Also wishlist doesnt work properly, you add some products to wishlist but its not recorded when you refresh or go to wishlist page.
The question is, is it possible to two totally seperated stores can affect each other by session cookies?
In between, today i realized that the encrpytion keys are same on both stores, i changed one when i see it but it not changed anything.
Do you guys have any idea on a weird scenario like this?
Thank you in advance.