Results not showing

When i try to solve a test it doesn’t show the results. Same thing happens with new tests and older ones.

Test page is here http://altfeldestiri.ro/test-afla-daca-folosesti-corect-facebook-ul

In firefox console i see this error showing when i press the Show results button TypeError: Watu.qArr is undefined script.js:112

What is did:
– Save plugin settings again
– Disable and re-enable the plugin

Help is much appreciated.

https://wordpress.org/plugins/watu/