Problem of Emoji.
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.
Ok show me defaut file
See if there is anything in the
@yariplus yes nodebb.conf
It defaults to using this file because it is the first server block.
Anyway, it looks like something changed on your DNS. It no longer responds to wildcard subdomains.
@MJ It depends on your registrar.
@yariplus okay thank you