I keep getting this error

Error Code: -324

Failed to load web page (unknown error).

I get that whenever I go anywhere on the store in the steam client, except for the store frontpage, anything else is inaccessible most of the times.
The steam client also fails whenever I try to send a gift.

When I try to go to any game store page, or checkout in chrome or mozilla it fails to load the page, it also fails whenever I try to add anything to the cart. If I try multiple times sometimes it adds it and I can proceed correctly, but I have to try up to at least 20 refreshs, I'm not kidding.

This however doesnt happen if I am using incognito mode.

I already tried uninstalling it, and had this problem for few months now.

Anyone has the same problem or a posible solution?

Thanks.
sorry, no giveaway here, I would make one, but I cant send out any gifts!