Thanks for the answer :) example URL with comments is www.rkglass.pl/blog/454-jak-dbac-o-szklane-powierzchnie

Can you disable the JS minification?

I switched off JavaScript compression, is it OK now?

It appears to be functioning properly now.

Works great, thank you very much! Can I somehow fix the minimized JS?

I had the same problem and sth like this would show up:
{"message":"\u0646\u0638\u0631 \u0627\u0641\u0632\u0648\u062f\u0647 \u0634\u062f! \u062f\u0631 \u062d\u0627\u0644 \u062a\u0627\u0632\u0647 \u0633\u0627\u0632\u06cc \u0635\u0641\u062d\u0647...","cssClass":"k2FormLogSuccess","refresh":1}
I installed Jquery easy and in the Jquery tab I selected fix Jquery+UI and it solved my problem.
Thanks for your guidance. you are the best

You 're welcome sohrab :)

Hello, I am having the same problem and have tried the solutions listed above but they did not work for me. Any other ideas I could try?

www.peopleschurchgp.com/30-days-home/item/330-30-days-of-prayer-day-2

Thanks in Advance,
James.

Hello,

You need to enable the loading of the jQuery library in K2;s settings.

That did it! Thanks so much!