You have fixed some problems; see the rest here:
http://validator.w3.org/check?charse...glamourina.pl/You don't need to wait for "w3 cache" to clear to revalidate. Go to the following url and put in your site address:
http://validator.w3.org/I dropped all errors specificaly stated as og: or g: or fb: and found quite a list remaining. I'll attempt to answer some of them below. Please fix these before writing back so that we don't go over the same problems multiple times.
Line 98, Column 48: document type does not allow element "div" here;
A div is block mode, but you have used it within an inline item.
Line 130, Column 12: ID "menu-nav" already defined
Each ID MUST BE UNIQUE. This ID was already used on line 120.
Line 160, Column 72: there is no attribute "url"
This might be an og: or not.
Line 245, Column 9: an attribute value specification must be an attribute
Check every point where there is an href= or src= item and put quote marks around the string of characters immediately after the equals sign. There a multiples of these.
Line 245, Column 64: required attribute "alt" not specified
The DOCTYPE you have chosen demands that every image must have an alt attribute. Some people think this type of error is not worth fixing and some fix it by putting in a dummy value like alt="*" but you should put in a short description of the image in case the user has images turned off.