macro "SERIAL_DEBUG_ADDF" defined here

Using a fresh config, fresh 8266 mini.

when i delte the "//" from #define ENABLE_MQTT_SUPPORT and compile the fresh config without any other changes i get this error:

esp8266-fastled-iot-webserver:1448:79: error: macro "SERIAL_DEBUG_ADDF" passed 2 arguments, but takes just 1
 1448 |                 SERIAL_DEBUG_ADDF("failed with state %s\n", mqttClient.state())
      |                                                                               ^
C:\Users\xXxxXX\Desktop\esp8266-fastled-iot-webserver\esp8266-fastled-iot-webserver.ino:329: note: macro "SERIAL_DEBUG_ADDF" defined here
  329 | #define SERIAL_DEBUG_ADDF(s) do{}while(0);
      | 
exit status 1
macro "SERIAL_DEBUG_ADDF" passed 2 arguments, but takes just 1

i google it, but cant find any usefull help.

jasoncoon / esp8266-fastled-webserver

macro "SERIAL_DEBUG_ADDF" defined here #251