Old Joomla and PHP 5.3.x Warning: Parameter 3 to showItem() expected to be a reference ... Print

Modify following in the /includes/Cache/Lite/Function.php: 

1. 

from:  $result = call_user_func_array(array($class, $method), $arguments); 

to:      $result = call_user_func_array(array($class, $method), &$arguments);

2. 

from:  $result = call_user_func_array(array($$object_123456789, $method), $arguments);

to:      $result = call_user_func_array(array($$object_123456789, $method), &$arguments);

3. 

from:  $result = call_user_func_array($target, $arguments);

to:      $result = call_user_func_array($target, &$arguments);