When using the Manager::instance() method without initializing it properly, you'll get the following notice:
PHP Notice: Undefined index: default in .../vendor/neat/object/classes/Manager.php on line 89
Followed by a fatal error:
PHP Fatal error: Uncaught TypeError: Return value of Shopbox\\System\\Model\\Config::manager() must be an instance of Neat\\Object\\Manager, null returned
When using the Manager::instance() method without initializing it properly, you'll get the following notice:
PHP Notice: Undefined index: default in .../vendor/neat/object/classes/Manager.php on line 89
Followed by a fatal error:
PHP Fatal error: Uncaught TypeError: Return value of Shopbox\\System\\Model\\Config::manager() must be an instance of Neat\\Object\\Manager, null returned
A RuntimeException would be better.