SciFi: Entering a New Book in live DB Results

opened scifi DB successfully
sql: insert into titles (title, publisher, copyright, printed, printmonth, format, series, serno, missing) values('', '', , , '', '', '', NULL, '' )
Last ID: 0

Error: no category selected

sql: insert into authors values('', '', '', '', 0)
enter_new_scifi.php last changed: February 07 2018 18:55:30.