Menu does not work - Virtuemart

HI:

I am using RT Lexicon Rocketheme.

Menu does not display.

Thanks.

www.rockettheme.com/joomla/templates/lexicon

Hi Isaac,
Thanks for contacting us and choosing our product!
Please send me an account site via private message. I will to check help you
Thanks!

Menu still not working.

Hi Isaac,
I'm sorry.
Please send me an account site. I do not get a message from you
Thanks!

I have send a pm to you.

Please check.

Hi Isaac,
I checked your problem.
JUX Mega Menu for VirtueMart Module: There is so much data, your site is not enough storage
Step1: Please go to System-> Global Configuration -> tab Sever -> config Error Reporting: Development
Step2: Go to www.quickservicepanama.com/ . You see it.
Fatal error: Allowed memory size of 268435456 bytes exhausted (tried to allocate 77 bytes) in /home/quickser/public_html/libraries/joomla/database/driver/mysqli.php on line 567
Please contact your hosting provider, ask them to help.
Thanks!