Hi,
This template is used for my website https://et-healing.eu since a few years.
My website seemed to work fine with this template, but very recently I found out it that it contains a lot of warnings and errors if I run it through the HTML checker
https://validator.w3.org/nu/?doc=https%3A%2F%2Fet-healing.eu%2Findex.php%2Fen%2F

Can you give me some suggestions for how to remove these from my template / website ?
Thanks in advance !!!
Philip