Insert data to new table

Hi, i using postgreSQL in WinXP but i can't insert data into new table.
 
INSERT INTO my_table ("Name")
VALUES ('ABC');
ERROR:  array value must start with "{" or dimension information
or
INSERT INTO my_table (Name)
VALUES ('ABC');
ERROR:  column "name" of relation "my_table" does not exist
 
but i able to select the record. Thank You.

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