Fatal Error in SQL Query: insert into settings (StKey, StValue) values('currenttext', '13')

Error Code & Message: [1062] Duplicate entry 'currenttext' for key 'PRIMARY'

Backtrace:

#0 /home/bluehor/lwt/dbutils.inc.php(63): do_mysqli_query('insert into set...')
#1 /home/bluehor/lwt/utilities.inc.php(1120): runsql('insert into set...', '')
#2 /home/bluehor/lwt/print_text.php(136): saveSetting('currenttext', 13)