Google map context menu and labels

See more:

Javascript

Hi all
i am creating gps tracking system
i have to do two things with the marker
1- create context menu with some functions on the marker
2- add car number as label on the marker


when i tried to do the second issue a conflict (i think) happened
i included a JS library
Marker Label
both are working alone but when combined no thing work


some details

both depend on overlay

errors
errors
TypeError: a.lng is not a function
...b=b||new _.G(0,0);var c=this.b;b.x=c.x+a.lng()*this.j;a=_.Za(Math.sin(_.Sb(a.lat...

InvalidValueError: not a LatLng or LatLngLiteral: in property lat: not a number

TypeError: c.lat is not a function
...,c=d.b.search(_.vi)):(c=a.ca,c=new _.G(c.lat(),c.lng()),a.da=c,_.uJ(d.j,{da:c,ye...

InvalidValueError: not a LatLng or LatLngLiteral: in property lat: not a number

Thank You

What I have tried:

the first thing is finished
Marker With Context Menu (Working)


code after combine
the previous Code after Adding Labels library (Not Working)