The driver is simply saying that the table doesn't have columns named sprt, sop, msc, or kid. That's what you told it to insert, data from those columns. It doesn't know anything about those variables in your Java code which happen to have the same names, nor should it.
The four question marks in the PreparedStatement act like places where you can plug in values, and the setString(n) method is used to plug values into those places. There are also setInt(n) and setDate(n) methods and several others, which mean you don't need to worry about how to format a date for an SQL query, or what to do about quotes in your string data, or any other annoying formatting issues.