I am beginner who learn firebase with wemos but i have problem in reading value from firebase. Previously the code could read the value and print the value but now the code can't read even print the value.
I use the code below to read the value of firebase :
Firebase.getString("door/Relay2");
Serial.print("Relay 2 :");
Serial.println(Relay2);
result :

previous test :

Please help and advice. Thanks
email : lutfhiepramudia@gmail.com