Salve a tutti , non riesco a capire a cosa si riferiscono questi errori nel validare il sito web..
potreste aiutarmi , grazie

Line 48, Column 8: end tag for "div" omitted, but OMITTAG NO was specified
</body >
You may have neglected to close an element, or perhaps you meant to "self-close" an element, that is, ending it with "/>" instead of ">".

Line 10: start tag was here
><div id="pagina">

Line 49, Column 8: end tag for "head" omitted, but OMITTAG NO was specified
</html >
You may have neglected to close an element, or perhaps you meant to "self-close" an element, that is, ending it with "/>" instead of ">".

Line 46, Column > 80: XML Parsing Error: EntityRef: expecting ';'
…UG a livello di programmazione riscontrato , per ogni errore effettuare la se…

Line 48, Column 8: XML Parsing Error: Opening and ending tag mismatch: div line 10 and body
</body >

Line 49, Column 8: XML Parsing Error: Opening and ending tag mismatch: body line 9 and html
</html >

non sono molti eppure non capisco cosa dovrei correggere, grazie