Fatal error: Uncaught Error: Call to private method Kreait\Firebase\ServiceAccount::fromJsonFile() from global scope in C:\xampp\htdocs\firebase\includes\dbconfig.php:13 Stack trace: #0 C:\xampp\htdocs\firebase\includes\code.php(4): include() #1 {main} thrown in C:\xampp\htdocs\firebase\includes\dbconfig.php on line 13