Uncaught (in promise) TypeError: Cannot read properties of null (reading 'auth')

[g1ronn1mo]

store/auth.ts

import { createClient } from '@supabase/supabase-js'

export const authStore = defineStore({
  id: 'main',
  state: () => ({
    supabaseClient: null,
  }),
  actions: {
    initialiseSupabase() {
      const supabaseUrl = process.env.SUPABASE_URL
      const supabaseKey = process.env.SUPABASE_KEY
      this.supabaseClient = createClient(supabaseUrl, supabaseKey)
    },
  },
})

Login.vue

<script setup lang="ts">
// Import predefined theme
import { ThemeSupa } from '@supabase/auth-ui-shared'
import { Auth } from '@nuxtbase/auth-ui-vue'
import { authStore } from '@/stores/auth'

const themeColor = useColorMode()

const store = authStore()
</script>

<template>
  <Auth
    :supabase-client="store.supabaseClient"
    :providers="[]"
    :appearance="{
      theme: ThemeSupa,
    }"
    :theme="themeColor.value"
    
  />
</template>

I have no idear why this should not work. But I get

Uncaught (in promise) TypeError: Cannot read properties of null (reading 'auth')
    at f (@nuxtbase_auth-ui-vue.js?v=e511d63d:1418:38)
    at fn._withMods.fn._withMods (chunk-7SWADUAP.js?v=e511d63d:10764:12)
    at callWithErrorHandling (chunk-7SWADUAP.js?v=e511d63d:1593:18)
    at callWithAsyncErrorHandling (chunk-7SWADUAP.js?v=e511d63d:1601:17)
    at HTMLFormElement.invoker (chunk-7SWADUAP.js?v=e511d63d:9974:5)

In supabase I get a 200 request.