Sidebar Under Content

Sounds like you need the validate the markup on your single posts.
https://codex.www.ads-software.com/Validating_a_Website
https://validator.w3.org/

Thanks for the very quick replay. I did not see any problems at the single post (But i’m kind of a dummy). I do know now that it has something to do with the microkid’s related post plugging. If I deactivated this plugging the problem is gone. But we realy need this plugging.

please post a download link to that microkid’s plugin; and ideally a link to your site with the problem visible.

Sorry for that.

Here the link of the site with the problem:

https://prutsfm.nl/prutsfm/index.php/opmerkelijk-prutsnieuws/echt-of-nep/#more-7712

If you scrol down you see the sidebar under the content (image widget, Postview)

Here you find the plugging: https://www.microkid.net/wordpress/related-posts/

there is definitively a closing </div> missing at the end of the plugin output.

your site seems to output a html table with the related posts; the plugin (just downloaded) uses an unordered list;

have you edited the plugin in any way?

in either case, can you paste the full code of microkids-related-posts.php into a https://pastebin.com/ and post the link to it here?

We made some Thumbs with the related post. Here you can find the microkids-related-posts.php

https://pastebin.com/0Hn5DBdV

line 483

$output .="</tr></table>";
                        #$output .= "</ul></div>\n";

try to add the </div> after the </table>

i.e.:

$output .="</tr></table></div>\n";
                        #$output .= "</ul></div>\n";

You really made my day. I’m eating cupcakes in my kitchen and having a big party! This code fixed it! Thank you really much The Sweeper
is the hero of the month! Thanks!