Assigning module to last menu column give js error

Hi,

I am using Maximenu ck for navigation menu.
It's working fine for me until I create 2nd column for last menu tab.
When creating 2nd column in last menu tab, all menu remains expanded and gives js error
in mootools-core.js (line 353) and the line code is :
}l=(l=="float"?b:l).camelCase();if(typeOf(k)!="string"){var m=(Element.Styles[l]||"@").split(" ");k=Array.from(k).map(function(o,n){if(!m[n]){return"";...

What to do to solve this error.
plz help me out. stuck at this point...

Thanks in advance

Hi
please give me your url to see the issue
CEd