NameplateColors - "SetTargetClampingInsets" error

[Dasteman]

Hello there,
I'm using addon NamePlateColors which is giving me this error:

1x [ADDON_ACTION_BLOCKED] AddOn 'NameplateColors' tried to call the protected function 'SetTargetClampingInsets()'.
!BugGrabber\BugGrabber.lua:573: in function <!BugGrabber\BugGrabber.lua:573>
[C]: in function `SetTargetClampingInsets'
...eBlizzard_NamePlates\Blizzard_NamePlates.lua:221: in function `SetupClassNameplateBars'
...eBlizzard_NamePlates\Blizzard_NamePlates.lua:74: in function `OnNamePlateAdded'
...eBlizzard_NamePlates\Blizzard_NamePlates.lua:38: in function <...eBlizzard_NamePlates\Blizzard_NamePlates.lua:32>
 
Locals:

Do you know what's causing this error and how to fix it?