@Konsilion Could be a cache issue perhaps. I registered, and see this
579204d6-41c4-44b2-9458-e28cad6b3cac-image.png
Please check the url
attribute within your config.json (within NodeBB root).
See https://community.nodebb.org/topic/3392/config-json-updated-base_url-and-relative_path-no-longer-exist/10 for more details on this.