 mixpanel is not defined

```
<script src="{{ asset('genealabs-laravel-mixpanel/js/mixpanel.js') }}"></script>
<script>
    if ('{{ config('services.mixpanel.token') }}' == '') {
        console.error('Mixpanel for Laravel: You must declare the env variable MIXPANEL_TOKEN!');
    }

    mixpanel.init('{{ config('services.mixpanel.token') }}');
</script>
```