I just installed free version of MJ and there is no any menu

Hi all, I just installed free version of MJ and there is no any menu in mobile version at all.
On the top left I see a round button with a few gray horizontal lines, as i guess it should expend menu, but it expands just blank square on the left.
Originally site has a few menus, including main.
How to make menu in mobile version visible?

What is URL of your website?
Do you have menu items in "mainmenu" menu? Is it menu that should be displayed in the sidebar?

yes, i have menuitems in mainmenu, i have a few mainmenu modules and all of them have a few options.
how can i guess looking to settings, that menu should be displayed in the sidebar? Of course i want it be displayed, but what settings i should check it really be?

Hi konfuciy.

Can you send us the following to our email support​@​mobilejoomla.com so that we can further investigate this issue:

1.) Version of your Mobile Joomla ? (we now have a 2.0 community version please visit mobilejoomla.com and I suggest for you to try it first if you are using an old version)

2.) URL of your Joomla site

3.) If possible, please send us your Joomla login for further investigation.

Best,

John Mark C.
Mobile Joomla! Support