Hi
It appears that the pages mentioned include embed code for Timelines that is invalid.
<a class="twitter-timeline" href="https://twitter.com/naizplus/herri-informazioa" data-chrome="noheader nofooter" data-widget-id="344728342311870466"><span style="color: #ffffff;">https://twitter.com/naizplus/herri-informazioa(r)engandiko Txioak</span></a>
<script type="text/javascript">// <![CDATA[
!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0],p=/^http:/.test(d.location)?'http':'https';if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src=p+"://platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs");
// ]]></script>
The url for timeline is invalid (https://twitter.com/naizplus/herri-informazioa) and causes JavaScript error. A quick fix will be to replace href in Timeline embed code: https://twitter.com/naizplus will work. On our end we will make changes to better handle errors in this case.