No matching function for call to 'HardwareSerial::println(FirebaseJsonData&)'

@ridhoazhar313 Why do users choose to ignore the advice on posting code ?

The easier you make it to read and copy your code the more likely it is that you will get help

Please follow the advice given in the link below when posting code , use code tags and post the code here

If you get errors when compiling please copy them from the IDE using the "Copy error messages" button and paste the clipboard here in code tags

Do not post pictures of code and error message