Problem with Jux MegaMenu for Virtuemart

hello, I installed the latest version of the component Virtuemart megamenu but this is what I see when I click on the module to set it up.
prntscr.com/em8ar1

Dear Customer,

Thank you so much for using our product. As your request, pls send the website information (URL and admin account) to the email address This email address is being protected from spambots. You need JavaScript enabled to view it. so that our DEV can check to see what happened.

Long for your reply.

Best regards,
HieuPT.