change error to warning and reword a bit (#26386)

src/animation/PropertyBinding.js

@@ -436,7 +436,7 @@ class PropertyBinding {
 		// ensure there is a value node
 		if ( ! targetObject ) {
 
-			console.error( 'THREE.PropertyBinding: Trying to update node for track: ' + this.path + ' but it wasn\'t found.' );
+			console.warn( 'THREE.PropertyBinding: No target node found for track: ' + this.path + '.' );
 			return;
 
 		}