Resize image on onepager with child page templates

[ank]

Hi i'am trying to resize a image from a child page who has his own template:

 

on the home page i render all the child pages who have there own php template:

foreach($page->children() as $section){
echo $section->render();
};

On the child page the php contains:

$image = $page->image;
$thumb = $image->size(300, 150);
echo <img src='$thumb->url'>;

the $thumb is not generated and i get a error:
"Look out… Fatal Error: Uncaught Error: Call to a member function size() on null in site/templates/welcome.php:23" 
"welcome.php" is a child template.

when i use :

echo <img src='$page->image->url'>;

it display the image.

 

 

[ank]

Solved,

It was the image itself, with another image everything works well.