Can't cast local file on arch linux.

I get this when I try and cast a file: `Serving local file(s). 192.168.0.15 - - [28/Mar/2025 21:07:44] "GET /?loaded_from_catt HTTP/1.1" 206 - video/x-matroska - 274.50 MB 192.168.0.15 - - [28/Mar/2025 21:07:44] "GET /?loaded_from_catt HTTP/1.1" 206 - video/x-matroska - 274.50 MB 192.168.0.15 - - [28/Mar/2025 21:07:44] "GET /?loaded_from_catt HTTP/1.1" 206 - video/x-matroska - 274.50 MB ` I've allowed range on my firewall using: `sudo ufw allow 45000:47000/tcp ` and status now shows: `To Action From -- ------ ---- 45000:47000/tcp ALLOW Anywhere 45000:47000/tcp (v6) ALLOW Anywhere (v6) ` I am quite new to Linux, so I am not sure if I am missing something