Hi there 

I have a single-question (SQL-type) survey. Link is here: https://www.spielatus.ch/joomla/index.php?option=com_communitysurveys&view=survey&id=4&catid=88&Itemid=464&skey=XDyMvr9nH6dkuz1K

When you enter some input and click the submit button, it keeps on loading (see printscreen below). It seems as if the result is stored, but no answers are included (empty result). 

Question in Backend looks as follows (i tried with and without the custom answer textbox...both wasn't working):

Would appreciate any help.

Kind regards

Pascal