Errors:
“=” in an unquoted attribute value. Probable causes: Attributes running together or a URL query string in an unquoted attribute value.
“"” in an unquoted attribute value. Probable causes: Attributes running together or a URL query string in an unquoted attribute value.
Bad value “https://www.googletagmanager.com/gtag/js?id=AW-1067123516"” for attribute “src” on element “script”: Illegal character in query: “"” is not allowed.
Bad value “javascript://” for attribute “href” on element “a”: missing } after function body
Bad value “banner_filter_389” for attribute “rel” on element “a”: The string “banner_filter_389” is not a registered keyword.
The element “button” must not appear as a descendant of the “a” element.
Bad value “banner_filter_385” for attribute “rel” on element “a”: The string “banner_filter_385” is not a registered keyword.
Bad value “banner_filter_384” for attribute “rel” on element “a”: The string “banner_filter_384” is not a registered keyword.
Bad value “banner_filter_381” for attribute “rel” on element “a”: The string “banner_filter_381” is not a registered keyword.
No space between attributes.
Attribute “}” not allowed on element “option” at this point.
When the “srcset” attribute has any image candidate string with a width descriptor, the “sizes” attribute must also be present.
No “p” element in scope but a “p” end tag seen.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Warnings:
Attribute “}” is not serializable as XML 1.0.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
This document appears to be written in Polish. Consider adding “lang="pl"” (or variant) to the “html” start tag.
Poland PL