W3 Validation Problem

waiting for help pls

Please see: https://codex.www.ads-software.com/Validating_a_Website

well thanks but my mistakes are not placed in single.php, page.php, archives.php,index.php or category.php….

when i look for xmlns(to correct facebook mistake) it is not placed in any of this files as it is written in the link that you gave me.

waiting for help pls

So which theme are you using?

living-journal

i am using all in one seo and jetpack as well

Try deactivating your plugins one-by-one to explore whether the other validation errors are regarding them, or if this is an issue with your theme.

i ve found out that it is because of the facebook like buttom which is by jetpack plugin and all in one seo plugin as well..

In that case you should ask for help in your plugin’s support sections:
Jetpack
https://www.ads-software.com/support/plugin/jetpack#postform

All in one seo
https://www.ads-software.com/support/plugin/all-in-one-seo-pack#postform

ok thanks