Items with no specified meta description, contain script text in the generated meta tag description.

Directly after the image, the html meta description contain some adsense script that's supplied by a K2-Tools module.

Result in the HTML Source (and also in google search results).

<meta name="description" content="ADSENSE-Breadcrumb-top-k2 (adsbygoogle = window.adsbygoogle || []).push({}); Voor mobiel bellen wordt gebruik gemaakt van een sim kaart. Deze kaart wo..." />

How can I fix this, without an explicit definition of the item description.

I have K2 2.6.9 and Joomla 3.4.4

Are you using any SEO/ SEF extensions?

I don't use external seo/sef components.
Only activated standard Joomla SEO settings and advanced SEF for K2 URLs.

This issue was caused in some sites by a K2 Ad extension.
Are you only using K2 Tools for your ads?

I don't use ads extensions.
Only pasted adsense code into the K2 - Tools module (Functionality : Custom Code).

Can you send me a link to your site?
You can hardcode a meta description based on your introtext's value.

[code]<?php
$doc = JFactory::getDocument();
$doc->addCustomTag('<meta name="description" content="'.$this->item->introtext.'" />');
?>/code]

But lets see if we can around that.

Hi Krikor,

The link to my site, page with the wrong description tags, jalink.vuren.info/sport/voetbal/37-legendarische-voetbaluitspraken/

MetaTags:
<meta property="og:description" content="(adsbygoogle = window.adsbygoogle || []).push({}); Tijdens de live voetbalverslagen doen de verslaggevers soms uitspraken die lachwekkend of..." />
<meta name="description" content="(adsbygoogle = window.adsbygoogle || []).push({}); Tijdens de live voetbalverslagen doen de verslaggevers soms uitspraken die lachwekkend of..." />

How is that banner generated? Through a {loadposition} snippet or through a template override?

If you are using an override you can try moving the code outside the introtext's div.

In every other case you need to enter the snippet I gave you in the item.php file.

More on overrides can be found here: getk2.org/documentation/tutorials/174-templating-with-k2-and-the-concepts-of-sub-templates