TypeError: Cannot read property 'locale' of undefined

**How to reproduce**

Initialise SDK with bad sales_channel:

```
const sdk = await AtlasSDK.configure({
  client_id: 'CLIENT_ID',
  sales_channel: 'SALES_CHANNEL_BAD'
});
```

`TypeError: Cannot read property 'locale' of undefined` is returned

**Expected behaviour**
Checked error should be returned