Hello,
1/ Go to your account on our site > add code https://prnt.sc/suA77ROISTth
2/ Your max-****ner.gr site is under maintenance mode, so we can’t check it.
Please watch this video about multiple headers – https://youtu.be/BpeXfzNwkOc Go to Theme Options > Header Builder > Multiple headers > edit/delete headers depending on your needs, or provide temporary wp-admin access, so we can take a closer look at your settings.
Regards