Theme is not working 

I installed the penguin theme, but it's not working.
When I open the slides, the following message appears:

```
[vite] Internal server error: [@vue/compiler-sfc] <script> and <script setup> must have the same language type.
  Plugin: vite:vue
  File: /Users/<username>/Documents/learning/node_modules/slidev-theme-vuetiful/layouts/default.vue
```