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Fatal error: Uncaught InvalidArgumentException: /var/www/wiki.factorio.com/extensions/GetFirst2Sentences/extension.json: unsupported manifest_version: in /var/www/wiki.factorio.com/includes/registration/ExtensionRegistry.php:455 Stack trace: #0 /var/www/wiki.factorio.com/includes/registration/ExtensionRegistry.php(330): MediaWiki\Registration\ExtensionRegistry->readFromQueue() #1 /var/www/wiki.factorio.com/includes/Setup.php(293): MediaWiki\Registration\ExtensionRegistry->loadFromQueue() #2 /var/www/wiki.factorio.com/includes/WebStart.php(85): require_once('...') #3 /var/www/wiki.factorio.com/index.php(50): require('...') #4 {main} thrown in /var/www/wiki.factorio.com/includes/registration/ExtensionRegistry.php on line 455