Argumento inválido fornecido para foreach

public function activate( $purchase, $args ) {

 $data = array(
 'api_key' => $args['token'],
 'theme' => ETHEME_PREFIX,
 'purchase' => $purchase,
 );

 foreach ( $args as $key => $value ) {
 $data['item'][$key] = $value;
 }

	**Erro nº 1    na linha 'api_key => $args ['token']    >>>        Warning**: Illegal string offset 'token' in **/.../version-check.php** on line **296

	Erro nº 2  na linha foreach ( $args as $key => $value ) {   >>> ****Warning**: Invalid argument supplied for foreach() in **/.../version-check.php** on line **300**