Informational or success status codes: Successful operation performed against the server .

Internal server error: The server experienced a critical error. Contact the server’s administrator immediately.

Bad or Invalid request: The server could not process the request due to invalid or incomplete information. See the X-GDX-Reply header message for more details.

Login or account related errors: Indicates that an error occurred with the account or login, such as invalid login or account disabled. See the X-GDX-Reply header message for more details.

Permission errors: The user does not have permission or authority to perform the requested action. See the X-GDX-Reply header message for more details.

Errors related to files or directories on the system: An error occurred while accessing a file or directory on the server, such as a file or directory does not exist.

File I/O Errors: An internal server error occurred while trying to access a file or directory.

Unknown error: An unexpected error occurred while trying to process the command. See the X-GDX-Reply header message for more details.