How to fix Nuxt error with SSR (Cannot read property 'getElementsByClassName' of null)

I searched for an answer but i can't find anything.
Here is my file
nuxt.config.js
```js
plugins: [
    {
      src: "~/plugins/vue-particles",
      ssr: false
    }
  ]
```

it throws the error `Cannot read property 'getElementsByClassName' of null` on route change.