Fatal error: Uncaught InvalidArgumentException: /var/www/html/extensions/GranthaSearch/extension.json is not a valid JSON file. in /var/www/html/includes/registration/ExtensionRegistry.php:449 Stack trace: #0 /var/www/html/includes/registration/ExtensionRegistry.php(329): MediaWiki\Registration\ExtensionRegistry->readFromQueue() #1 /var/www/html/includes/Setup.php(299): MediaWiki\Registration\ExtensionRegistry->loadFromQueue() #2 /var/www/html/includes/WebStart.php(86): require_once('...') #3 /var/www/html/index.php(50): require('...') #4 {main} thrown in /var/www/html/includes/registration/ExtensionRegistry.php on line 449