Hi,
Thanks for the screenshots and the link to your page.
Try adding this code to the end of your functions.php file in Appearance ▸ Editor:

function custom_post_meta_script() { ?>
    <script>
(function($){
$("article.post-entry").each(function() {
        var postCat = $(this).find('.blog-categories.minor-meta');
        var postMeta =  $(this).find('time.date-container.minor-meta').css({'float':'left'});
	 $(this).find(postCat).append( $(this).find(postMeta).append('<span class="post-in"> / in </span>'));
});
})(jQuery);
</script>
    <?php
}
add_action('wp_footer', 'custom_post_meta_script');

I believe that you wanted the “in” to be lowercase, so add the css to your stylesheet:

time.date-container .post-in {
	 text-transform: lowercase;
}

Best regards,
Mike

Hi,
Glad we were able to help, if you have any further questions please create a new thread and we will gladly try to help you. Thank you for using Enfold.

Best regards,
Mike

Hi,
Glad we were able to help, if you have any further questions please create a new thread and we will gladly try to help you. Thank you for using Enfold.

Best regards,
Mike

Hey EricSmeets,
I assume that you want this button on every product page and it will lead to the same specific page.
Try adding this code to the end of your functions.php file in Appearance ▸ Editor:

function custom_button_next_to_product_button() { ?>
<script>
(function($){
$('.single-product .single-product-summary').each(function() {
  $('<button class="button buttonLink">Een andere specifieke pagina</button>').insertAfter('.single_add_to_cart_button').css({ 'margin-left': '3%' });
});
$('.buttonLink').click(function(e){
  e.preventDefault();
  window.location.href = "https://google.com";
});
})(jQuery);
</script>
    <?php
}
add_action('wp_footer', 'custom_button_next_to_product_button');

then adjust the link to suit.

Best regards,
Mike

Hi,
Glad this helped,

Pourriez-vous me dire ou aller pour supprimer les miniatures qui sont créées automatiquement?

Once the thumbnails are created you would need to delete the ones you don’t want via FTP, or your cPanel file manager, but you can stop these from being created if you know that you won’t need some of them by using the plugin Simple Image Sizes and setting the sizes to zero.
Then future image uploads will not create the thumbnails marked with a zero.

Please note that we ask that each thread stays “on topic” and different threads are used for multiple questions, this helps future users find solutions easier and multiple Moderators assist you with a solution, thank you for understanding.

Best regards,
Mike

Hi,
Thank you for the link to your site, try adding this code to the end of your child theme functions.php file in Appearance ▸ Editor:

function custom_grid_meta_script() { ?>
    <script>
(function($){
$("article.slide-entry").each(function() {
        var slideCat = $(this).find('.blog-categories.minor-meta');
        var slideMeta =  $(this).find('time.slide-meta-time').css({'float':'right'});
	 $(this).find(slideCat).append( $(this).find(slideMeta));
	 $(slideCat).find('a').contents().unwrap();
});
})(jQuery);
</script>
    <?php
}
add_action('wp_footer', 'custom_grid_meta_script');

Please see the screenshot in the Private Content area for the expected results.

Best regards,
Mike

Hi,
Glad to hear that you have this sorted out, if you have any further questions please create a new thread and we will gladly try to help you. Thank you for using Enfold.

Best regards,
Mike

Hi,
On the start page was a different element showing the blogs, I adjusted your script so now it works of all three of these situations, do you have any more places that you need to move the date?

function metaAfterTitle(){
?>
 <script>
 (function($){
$("article.post-entry").each(function() {
        var postTitle = $(this).find('.post-title.entry-title ').css({'margin-bottom':'0','padding-bottom':'0'});
        var metaInfo =  $(this).find('.post-meta-infos');
	 $(this).find(metaInfo).insertAfter( $(this).find(postTitle));
       });
$("article.slide-entry").each(function() {
        var slideTitle = $(this).find('.slide-entry-title.entry-title').css({'margin-bottom':'0','padding-bottom':'0'});
        var slideMeta =  $(this).find('.slide-meta').css({'margin-top':'0','padding-top':'0'});
	 $(this).find(slideMeta).insertAfter( $(this).find(slideTitle));
});
})(jQuery);
 </script>
<?php
}
add_action('wp_footer', 'metaAfterTitle');

As for your sidebar, you are correct this should work, I copied your page /medien/ to my test site and the sidebar show as on your live site, but on your staging site the page structure is not correct, the sidebar is outside the #main div, so there is a conflict somewhere that is not on your live site.
How did you copy your site to the staging site?
Typically this kind of error is due to unclosed tags or html in title fields which can be hard to find, when did you notice this error? Do you remember what you were working on?
Try disabling all of your plugins. If that resolves the issue, reactivate each one individually until you find the cause.
If this doesn’t help try creating a second staging site of the original to ensure that this process is not what caused the error.

Best regards,
Mike

Hi,
I didn’t check the Aktuell page, I was looking at the post that you had originally linked to.
So to work for both I change to this:

function metaAfterTitle(){
?>
 <script>
 (function($){
$("article.post-entry").each(function() {
        var postTitle = $(this).find('.post-title.entry-title ').css({'margin-bottom':'0','padding-bottom':'0'});
        var metaInfo =  $(this).find('.post-meta-infos');
	 $(this).find(metaInfo).insertAfter( $(this).find(postTitle));
       });
})(jQuery);
 </script>
<?php
}
add_action('wp_footer', 'metaAfterTitle');

and adding this css for a category was too close the date on the Aktuell page.

.html_modern-blog #top.page-id-16257 .post-entry .blog-categories {
    top: -15px;
}

This script doesn’t affect the sidebar on your Aktuell page, it was down because you have a color section on the page, I disabled the sidebar and added it using the widget element and now it shows correctly, please check.

Best regards,
Mike

Hey lauterkeit,
I believe that your featured image is not showing due to a script in your child theme functions.php, try looking there, or include admin login in the Private Content area so we can be of more assistance.

Best regards,
Mike

Hey Nicola,
Thank you for your patience, we could move the meta with javascript and also remove the link from the category text, but we will need to see the actual page to examine the elements.
Please link to one of the archive pages with this structure.

Best regards,
Mike

Hi,
Glad we were able to help, if you have any further questions please create a new thread and we will gladly try to help you. Thank you for using Enfold.

Best regards,
Mike

Hi,
To add a screenshot please try using an Screenshot service and pasting the image URL in your post.

Best regards,
Mike

Hi,
Thank you for the link to your dev site, I tested by disabling all of your plugins then the background image showed, I reenabled them all.
Try disabling all of your plugins and reactivate each one individually until you find the conflict.

Best regards,
Mike

Hi,
Vielen Dank für Ihr Feedback. Anstatt Schaltflächen in Ihre Spalten einzufügen, versuchen Sie, ein Textelement für den Text zu verwenden, und fügen Sie den Link mit der Spaltenoption hinzu. Dies verhält sich wie eine Schaltfläche und behält die gleiche Höhe wie die Spaltenoption bei.

— Translated with Google —

Thank you for your feedback, instead of adding buttons inside of your columns, try using a text element for the text and add the link using the column option, this will act just like a button and keep the equal height from the column option.

Best regards,
Mike