Usually related to awaiting promises from other requests, i.e global scope stuff.

let story;
try {
  const { data } = await storyblokApi.get(
    `cdn/stories/${slug === undefined ? "startseite" : slug}`,
    {
      version:
        import.meta.env.PUBLIC_ENV === "production" ? "published" : "draft",
      resolve_links: "url",
    }
  );

  story = data.story;
} catch (error) {
  throw new Error(toErrorWithMessage(error).message);
}

let story;
try {
  const { data } = await storyblokApi.get(
    `cdn/stories/${slug === undefined ? "startseite" : slug}`,
    {
      version:
        import.meta.env.PUBLIC_ENV === "production" ? "published" : "draft",
      resolve_links: "url",
    }
  );

  story = data.story;
} catch (error) {
  throw new Error(toErrorWithMessage(error).message);
}