INVALID_CURSOR error class
The cursor is invalid.
This error class has the following derived error classes:
DISCONNECTED
The cursor has been disconnected by the server.
NOT_REATTACHABLE
The cursor is not reattachable.
POSITION_NOT_AVAILABLE
The cursor position id <responseId> is no longer available at index <index>.
POSITION_NOT_FOUND
The cursor position id <responseId> is not found.