Question: Shopping Cart Price Rule - By using ZIP Code and Subtotal - Free shipping Not Working

**Shipping Method : Webshop Matrix Rate**

I am applied Shopping Cart Price Rule using zipcode,

[![enter image description here](https://i.stack.imgur.com/37TXe.png)](https://i.stack.imgur.com/37TXe.png)
[![enter image description here](https://i.stack.imgur.com/vyKJn.png)](https://i.stack.imgur.com/vyKJn.png)
[![enter image description here](https://i.stack.imgur.com/u23W5.png)](https://i.stack.imgur.com/u23W5.png)

May I know where I did the error?

Error Log:

```
2018-10-03T10:47:02+00:00 ERR (3): Warning: include(): Failed opening 'Mage/Displayfreeprice/Model/Freeprice.php' for inclusion (include_path='/home/abc/public_html/app/code/local:/home/abc/public_html/app/code/community:/home/abc/public_html/app/code/core:/home/abc/public_html/lib:.:/opt/cpanel/ea-php70/root/usr/share/pear')  in /home/abc/public_html/lib/Varien/Autoload.php on line 94

```

Answer: 
I am also facing the same issue for me a temporary fix is force deploying developer mode (even if you are already on it or not) **i.e. Executing the following command after di compile** 

```
 php bin/magento deploy:mode:set developer

```

It is a temporary / quick fix , i am still looking into issue will update answer if find the root cause
Please run following command :

> 
> php bin/magento setup:upgrade
> 
> 
> php bin/magento setup:static-content:deploy -f
> 
> 
> php bin/magento cache:clean
> 
> 
> php bin/magento cache:flush
> 
> 
>