Oracle SQL developer

The question is: Insert your information into the Grad$\_$Candidates table. For the ID$,$ enter any $7$ numbers. Use your first and last names. For the credits, enter up to $3$

numbers. For the graduation$\_$date, enter the date you expect to graduate

When running this code

INSERT INTO Grad$\_$Candidates $($ID$,$ First$\_$Name, Last$\_$Name, Credits, Graduation$\_$Date$)$

VALUES $(0143724,$ 'Evan, 'Othello', $60,$ TO$\_$DATE$(\text{'}2024-09-16\text{'},\text{'}$YYYY$-$MM$-$DD$\text{'}))$;

results in this: Error starting at line :$1$ in command$-$ Error report Ora$-00001$: unique constraint $($AB$\_$s$10.$Grad$\_$candidates$\_$ID$\_$PK$)$ violated