It’s not the same exact issue as that topic was about ARM64 and you are running in a classic x64 CPU.
URI::InvalidURIError: URI must be ascii only “https://au\u0123iks.lv/images/discourse-logo-sketch.png” (URI::InvalidURIError)
What did you enter for your forum URL? URLs can only be ASCII and it looks like you entered a Unicode character? Do you have a punycode domain?