( ! ) Fatal error: Uncaught Error: Class 'Nexmo\Client\Callback\Callback' not found in C:\Users\Lenovo\Documents\college\vendor\nexmo\client-core\src\Voice\Message\Callback.php on line 13
( ! ) Error: Class 'Nexmo\Client\Callback\Callback' not found in C:\Users\Lenovo\Documents\college\vendor\nexmo\client-core\src\Voice\Message\Callback.php on line 13
Call Stack
#	Time	Memory	Function	Location
1	0.0331	363856	{main}( )	...\Callback.php:0