getPlayer return null with exist player

[SevenDareK]

Hello,
I call $api->call('getPlayer', ['DareK']) and the player DareK exist but jsonapi return

null

but with a fake player

array (size=1)
  0 => 
    array (size=4)
      'result' => string 'success' (length=7)
      'is_success' => boolean true
      'source' => string 'getPlayer' (length=9)
      'success' => null

[electronicboy]

http://mcjsonapi.com/apidocs/