Safari is almost inoperable

After updating to MacOS 12.6.2 my MacBook Pro will no longer access many if not most of the websites that I had previously saved as Bookmarks, as well as name other common and popular websites. The message I get is:

"Safari can't Find the Server "

"Safari can't open the page "(website address) " because Safari can't find the server "(Website address)"

Is anyone else having this problem?