creating full text catalog error

-- Enable fulltext searching on the database
USE database1;
GO
EXEC sp_fulltext_database 'enable';
GO
-- Create a fulltext catalog
CREATE FULLTEXT CATALOG ft_catalog_database1
GO



CREATE FULLTEXT INDEX ON database1.dbo.poems
(
	title--->Column name
	Language 0X0,
	poem----->Column name
	Language 0X0
)
KEY INDEX PK__poems__00551192 ON ft_catalog_database1
WITH CHANGE_TRACKING AUTO; 

here
PK__poems__00551192---->its index key