Cant output model data on template

What im doing wrong ?
I having problems to output model data on template, the model class is set, has the method and the method returns non empty string.
When i put literal inside my template instead of {$model->getPageTitle()} it works fine.
Im trying to follow the example when code refer variable directly like that: <p>{$item}</p>
The way i coded dont make latte find the object and throw the following error:
Call to a member function getPageTitle() on null

The generated code is :

<?php
// prolog Latte\Macros\BlockMacros
//
// block PageTitle
//
if (!function_exists($_b->blocks['PageTitle'][] = '_lb3a1c833a31_PageTitle')) { function _lb3a1c833a31_PageTitle($_b, $_args) { foreach ($_args as $__k => $__v) $$__k = $__v
;echo Latte\Runtime\Filters::escapeHtml($model->getPageTitle(), ENT_NOQUOTES) ;
}}
 ?>


**My source code is:**

**My controller:    **


<?php
$viewName = "myHome.latte";
$mymodel = new myModelClass();
$parms = [$mymodel];
$latte = new \Latte\Engine();
$latte->setTempDirectory(__DIR__ . '/../TpltLatte/');
$loader = new myCustomTemplateLoader($cfgprm);
$latte->setLoader($loader);
$latte->render($viewName, $parms);
?>

My template:

<?php
{block PageTitle}{/block}
?>

My layout:

<?php
{layout '@layout.latte'}
{block PageTitle}{$model->getPageTitle()}{/block}
?>