Hello CJ-team!

I have upgraded from 3.5 to the newest version 4.2.5.

After the upgrade I get 500 errors when i try to save new polls.
Curiously the polls are created, but when i visit them on the frontpage I get an error 500 again and a broken layout.

To test I deactivated sh404sef for the component.

Please have a look at 

https://www.solaranlagen-portal.de/index.php?option=com_communitypolls&view=polls&Itemid=1246&lang=de

The following old poll seems to work, but i dont know why.

https://www.solaranlagen-portal.de/index.php?option=com_communitypolls&view=poll&id=4&catid=129&Itemid=1246

And there also seem to be an issue with loading disqus, cause it doesn't load with ssl/https.

Thank you for your help!

Jascha