Fatal error: Uncaught Error: Interface 'Nexmo\Entity\JsonUnserializableInterface' not found in C:\xampp\htdocs\com.arbokcorp.app\vendor\nexmo\client\src\Insights\Basic.php:8 Stack trace: #0 {main} thrown in C:\xampp\htdocs\com.arbokcorp.app\vendor\nexmo\client\src\Insights\Basic.php on line 8