wrangler preview output is not the same as live

Hello all, finally I got my astro project buildable. Using wrangler pages dev ./dist my website looks as expected. Now I deployed it using wrangler deploy ./dist/_worker.js and the website does not look as expected: https://lindnerit-website.robin-lindner.workers.dev/en/ It does not load stylesheets, images and scripts I want (-> 500). Can anybody help me here?

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routes.json