I have previously made child theme, and now I have copied and modified header.php in child theme.
Now everything is OK and Google+ page is linked with website.
I have tried all options, but without success.
Even though, I have deleted all three png files, and the same result.
So, I think, it is another solution, besides replacing these three images.
How can I edit social-icons.png. Where can I find this png file with the appropriate order of icons. [email protected] and [email protected] are already replaced with the same name, but hover file is not the same format as yours.
Please, if you can send me these three files, in order to be the same with your format.