SqlException Help required

[junugari]

bad SQL grammar [insert into T_EMPLOYEE_EMP (MST_ID,MST_TYPE,MST_NAME) values (?,?,?)]; nested exception is java.sql.SQLException: ORA-00904: "MST_NAME": invalid identifier
MST_NAME(column name) is alredy there in data base

int addEmp = update("insert into T_EMPLOYEE_EMP (MST_ID,MST_TYPE,MST_NAME) values (?,?,?)",new Object[]{2,"Operator","Operator"});