Uncaught TypeError:Cannot read property 'outerHTML' ...

Hey,

I downloaded a boostrap admin theme from online and applied it to my projects.

Whenever i try to run it i get an error such as:

Uncaught TypeError: Cannot read property 'outerHTML' of undefined

at Object.initRightMenu (light-bootstrap-dashboard.js:69)

at light-bootstrap-dashboard.js:43

at dispatch (jquery-1.10.2.js:5095)

at elemData.handle (jquery-1.10.2.js:4766)

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In the .js file i throws an error here :

$logo = $sidebar.find('.logo').first();

logo_content = $logo[0].outerHTML;

Can someone please help me go about this? thank you in advance