ZapZap can't resolve DNS (brower web.whatsapp.com works fine)

[ahydronous]

ZapZap 6.2.4 (Flatpak)
KDE Plasma 6.5.4
KDE framework 6.20
Qt 6.10.1
Wayland
NixOS 25.11

Has always been working perfectly until today. Router reboot and laptop reboot changed nothing.