Accordion showing html code in widgets

I used to use this accordion on my site but now it shows html code in the footer area around it.
The code it shows is as follows:
” <div id=”widget_accordions-2″ class=”widget widget_widget_accordions”>

</div> ”

And within this code the actual accordion shows.

As of now I only have an example accordion on my site for issue-resolving purposes and to make visible how the problem looks.

My site runs fully up to date on any other plug-in, wordpress version and themes.
I’m using Google Chrome as browser.

I hope this can be resolved in an update in the future.

Kind regards,
Hugo de Groot

The page I need help with: [log in to see the link]