Add messages button does not work

Hello I just bought the component and I have some problems :

1- when I go to add Message to a quiz (the popup - Trivia Quiz Messages"
I click on the [+] bouton
But nothing happen...

2- Can I add a description text before some radio buton questions ?

Exemple
The Group 01 description
Radio question 01
yes
no

Radio question 02
yes
no

The Group 02 description
Radio question 01
yes
no

Radio question 02
yes
no


can you help please ?
If we don not have solution for this, please refund us because Thins componantis very complicated to use and it's not ergonomic/ intuitive at all !

Waiting for your reply urgently


Regards

Hello,
1. It seems to be a jQuery conflict. Please share backend & FTP login credentials via Contact us form. We'll look into it.
2. Displaying a text for a group of questions isn't possible. For Refund related queries, Please contact our Sales team via Contact us form.

Hello Daniel and any thanks for your reply.

I juste sent you the information you asked for from the contact us form !

Otherwise,
I find a solution for displaying a text for a group of questions...

Finally,
I have another request, can we make a different number of questions for each page ?

Many thanks,
Regards,

Hi Daniel, i just sent you FTP information from the contact-us page.

Thanks you in advance

Hi,
Issue has been corrected and an Email has been sent to you. Please check..

It's okey now,
working great,
thaks you for your intervention

Regards