what am i doing wrong here?  I get an error on the if statement.  Help

if(input.Lineman_6 != null)

insert into Employee_Time

[

 Added_User = zoho.loginuser

 Date_Field = input.Date_Field

 Name = input.Lineman_6

 Overtime_Hours = input.Overtime_Hours

 Regular_Hours = input.Regular_Hours

]