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/d628633ed4c36f015962bc7e4ddefd69f1e088b9/include You should set ROOT_URL correctly, otherwise the web may not work correctly.

Jeroen Domburg ccc179f533 Big-arse structure change: readying esphttpd for a split into a library and an usage example		10 years ago
..
uart_hw.h	Renamed/split some files but forgot to add them	11 years ago
user_config.h	Ting, a webserver example - first commit	11 years ago