Compilation error: 'D4' was not declared in this scope

[TBR-BRD]

Hallo, ich bekomme beim Compilieren diese Fehler, gibts ein update?

/Users/thoralf/Downloads/FritzBoxSpeedMeter-master/FritzBoxSpeedMeter/FritzBoxSpeedMeter.ino:26:21: error: 'D4' was not declared in this scope
26 | #define DS18B20_PIN D4
| ^~
/Users/thoralf/Downloads/FritzBoxSpeedMeter-master/FritzBoxSpeedMeter/FritzBoxSpeedMeter.ino:28:17: note: in expansion of macro 'DS18B20_PIN'
28 | OneWire oneWire(DS18B20_PIN);
| ^~~~~~~~~~~
/Users/thoralf/Downloads/FritzBoxSpeedMeter-master/FritzBoxSpeedMeter/FritzBoxSpeedMeter.ino: In function 'void setup()':
/Users/thoralf/Downloads/FritzBoxSpeedMeter-master/FritzBoxSpeedMeter/FritzBoxSpeedMeter.ino:32:16: error: 'D3' was not declared in this scope
32 | #define DHTPIN D3
| ^~
/Users/thoralf/Downloads/FritzBoxSpeedMeter-master/FritzBoxSpeedMeter/FritzBoxSpeedMeter.ino:71:13: note: in expansion of macro 'DHTPIN'
71 | dht.setup(DHTPIN, DHTesp::DHT22);
| ^~~~~~
In file included from /Users/thoralf/Downloads/FritzBoxSpeedMeter-master/FritzBoxSpeedMeter/FritzBoxSpeedMeter.ino:39:
/Users/thoralf/Downloads/FritzBoxSpeedMeter-master/FritzBoxSpeedMeter/WLAN.h: In function 'bool wlan_connect()':
/Users/thoralf/Downloads/FritzBoxSpeedMeter-master/FritzBoxSpeedMeter/WLAN.h:6:43: error: control reaches end of non-void function [-Werror=return-type]
6 | String wlan_txt = "SSID: " + String(ssid);
| ^
/Users/thoralf/Downloads/FritzBoxSpeedMeter-master/FritzBoxSpeedMeter/WLAN.h: In function 'bool wlan_status()':
/Users/thoralf/Downloads/FritzBoxSpeedMeter-master/FritzBoxSpeedMeter/WLAN.h:91:1: error: control reaches end of non-void function [-Werror=return-type]
91 | }
| ^
cc1plus: some warnings being treated as errors

exit status 1

Compilation error: 'D4' was not declared in this scope