Your ROOT_URL in app.ini is https://source.parasitstudio.de:63000/ but you are visiting https://source.parasitstudio.de/wirtz/esp-link/src/commit/4a77c56b308a92471f44ac06363199d7ecf3d456/cmd You should set ROOT_URL correctly, otherwise the web may not work correctly.

Thorsten von Eicken 74f61c07b9 rest lib tweak		10 years ago
..
cmd.c	send initial wifi state to MCU	10 years ago
cmd.h	incorporated tuanpmt's slip protocol and rest library	10 years ago
handlers.c	send initial wifi state to MCU	10 years ago
rest.c	rest lib tweak	10 years ago
rest.h	REST library fixes	10 years ago
tcpclient.c	incorporated tuanpmt's slip protocol and rest library	10 years ago
tcpclient.h	incorporated tuanpmt's slip protocol and rest library	10 years ago