Not working - jquery conflict?

Hi,

I'd like to place the mega menu to my site, but it's not showing correctly.
Sub menu doesn't show up at all, the appearance doesn't look right either.
Could you tell me what is going wrong, please?

This is my test site address. There is Mega Menu on top-left with the title of "Racing shells-jux".
www.siltest.com/boats/racing-shells/prices.html#

Thank you for your help in advance!

Hi ricola510 !
you can give ticket and account your website for me , I will check for you.
Best Regards,
Huyen Tran