HMVC broken in php 7.3 -- help

just change application/third_party/MX/Router.php line 239



from this 

PHP Code:

public function set_class($class)
    {
        $suffix = $this->config->item('controller_suffix');
        if (strpos($class, $suffix) === FALSE)
        {
            $class .= $suffix;
        }
        parent::set_class($class);
    } 


to this 

PHP Code:

public function set_class($class)
{
  $suffix = (string)  $this->config->item('controller_suffix');
  if ($suffix && strpos(strval($class), $suffix) === FALSE)
  {
    $class .= $suffix;
  }
  parent::set_class($class);
} 


tested         

    Yes .... it works for me also.