Fatal error: Uncaught Error: Class "Grpc\Server" not found in /var/www/usonboard.com/grpc/src/php/lib/Grpc/RpcServer.php:33
Stack trace:
#0 /var/www/usonboard.com/grpc/src/php/tests/unit_tests/RpcServerTest.php(24): require_once()
#1 {main}
thrown in /var/www/usonboard.com/grpc/src/php/lib/Grpc/RpcServer.php on line 33