Html Validation

Hi, I tried to put my site to Validator and wrote me many errors. Kod’m too much not correct. How is it that it tells invalid code?

Will you help me with this please?
https://validator.w3.org/nu/?doc=http%3A%2F%2Fngeurope-stav.cz%2Fkontakt%2F

Hello @bauik1,

There are many not important warnings and not theme-related errors (you can deactivate all plugins except Sydney Toolbox and Page Builder by SiteOrigin to make sure).

Please create a separate topic for each theme-related issue (you should see them after deactivating all plugins except Sydney Toolbox and Page Builder by SiteOrigin) if you want to get more specific answers.

Kind Regards, Roman.