Nome incorreto da classe

[marcosrjjunior]

Nome incorreto ao instanciar a classe MoIPClient.
Moip.php nos métodos send e queryParcel

$client = new MoipClient();

Correto

$client = new MoIPClient();

[dbpolito]

Solução: Arrumar a criação do objeto em:

https://github.com/moiplabs/moip-php/blob/master/lib/Moip.php#L729 e https://github.com/moiplabs/moip-php/blob/master/lib/Moip.php#L782

Ou renomear a classe:

https://github.com/moiplabs/moip-php/blob/master/lib/MoipClient.php#L11