Call to a member function update() on a non-object

[MND13]

Hi, i have the same issue as this https://stackoverflow.com/questions/29635202/woocommerce-downloadable-files-disappear-after-database-restore

I have applied the updated code $wc_api->products->update( $product_id, array('title'=>$name,'downloads'=>array(array('name'=>$name,'file'=>$newURL))));

so mine looks like this:

while($row = $result->fetch_assoc()) {
  	
	
    $product_id = $row["post_id"];
    $meta_value = $row["meta_value"];
    preg_match("/.+\:\"(https:\/\/.+\/wp-content\/uploads\/.+\/.+\/(.+)\..+)\".+/", $meta_value, $m);
	
	print_r($wc_api->products);
		
	try {
		 
		print_r( $wc_api->products->update( $product_id, array('title'=>$name,'downloads'=>array(array('name'=>$m[2],'file'=>$m[1])))) );
		 
	} catch ( WC_API_Client_Exception $e ) {
		echo $e->getMessage() . PHP_EOL;
		echo $e->getCode() . PHP_EOL;
	
		if ( $e instanceof WC_API_Client_HTTP_Exception ) {
			print_r( $e->get_request() );
			print_r( $e->get_response() );
		}
	}
	
	
    
  }

but its causing a Fatal error: Call to a member function update() on a non-object. WC_API_Client_Exception errors are also not visible. I am using the Woocommerce Version 3.2.6 and a recent copy of this API