Error

/home/iainheng/kohana/modules/koacl/a1/libraries/A1Doctrine.php [68]:

Call to undefined function data_get()

/home/iainheng/kohana/modules/koacl/a1/libraries/A1DoctrineFacebook.php [70]:
```
A1Doctrine_Core->logged_in(  )
```
/home/iainheng/kohana/applications/escapeg/controllers/site.php [44]:
```
A1DoctrineFacebook_Core->logged_in(  )
```
```
Site_Controller->__construct(  )
```
/home/iainheng/kohana/system/core/Kohana.php [249]:
```
ReflectionClass->newInstance(  )
```
/home/iainheng/kohana/system/core/Event.php [209]:
```
Kohana::instance(  )
```
/home/iainheng/kohana/system/core/Bootstrap.php [55]:
```
Event::run(  )
```
index.php [116]:
```
require(  )
```

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