con1: Command> call ttgridcreate ('samplegrid');
15022: OraclePwd connection attribute needs to be specified and has to be non-empty for using IMDB Cache features
5109: Cache Connect general error: BDB connections not open.
As you see from the error,The OraclePWD connection attribute is not specified. which mean caching will not be enabled till you are set OraclePWD parameter , to do this reconnect with the following connection :-
Run your command again