Maximenu CK Params doesn't work

When I change something in the parameters the preview icon keeps spinning and I get an errror I get an error: Failed : Please reload the page. I can't do anything anymore, the icon keeps spinning.
This happens in Firefox and Chrome.

Hi
this problem can occur if you have a security tool installed that blocks the ajax requests
or this can be blocked by your server

Do you have a security tool installed ?
CEd

I use an anitvirus application, AVAST.

And now I can't even close the Params lightbox.

no, I mean on your website not on your computer

No, I'm now testing in Firefox Developer Edition. My other browsers have AddBlockPlus.

ok send me an admin access by email to check this
www.joomlack.fr/contact