Hi paratheme.
Just copy the shortcode from the Plugin (updated version) again to the places you need them. Then at least the accordions show up again.
But this won′t solve the problems of producing errors with “Umlaute”. I fixed it in a “quick n dirty”-way, but this should be corrected.
I always have to click on all Headlines of the Accordion I want to update and delete the special-characters and put in ?,? or ü –>save and never touch the accordion again. The second you want to update texts again, all special characters are back in the headlines.
Veeery time consuming and user unfriendly. ;o)