Ask question about product problem

[psm]

Dear all,
I have problem with "Ask question about product" function. When I click on send button, it shows me blank page with text "Your email was succesfully sent" and I do not receive any email.

I have virtuemart 3 and joomla 3.6.

Could you please help me what I can do?

Thanks.

[jenkinhill]

I have virtuemart 3 and joomla 3.6.

Tells us nothing!  http://forum.virtuemart.net/index.php?topic=79799.0

For blank page see http://forum.virtuemart.net/index.php?topic=117042.0   - using Stan from Rupostel's plugin is the easiest way to see what happened.

[psm]

I checked all error reports, but everything is ok. 

My version of joomla is: 3.6.5
My version of Virtumeart is: 3.0.18

I give printscreen of porblem in attachement.

Where should "Thank for your question" be showed normally?

There is also problem with Close button.

[psm]

Dear all,
I already found the answer. My problem was here:

Activate Css Styles & Javascripts:
Use Fancybox (Recommended) - need to activate

Thanks