Footer links don't validate? WP bug?

I have a problem that most of my footer links don’t validate in w3c validator. I get errors like these:

1. an attribute value specification must be an attribute value literal unless SHORTTAG YES is specified
2. NET-enabling start-tag not immediately followed by null end-tag

At the page it functions OK though. When I try to fix it making the links in double quotes, WP automatically wraps it in some strange markup: /”www.link.com”/ which makes it also non-valid and non-functioning. Is it a WP bug, or how to make the page valid and functioning also?

Also I got some validation errors at some tables, for which WP automaticaly adds (and sometimes miss to open/close some of them) the wrapping p elements.

Both can be seen at this link: https://www.baksagaspar.com/eng/

Thanks for any help…