خطأ في android studio عند إضافة بيانات لقاعدة sQlite

عندما أضغط على زر الحفظ تظهر العديد من الأخطاء هذه الأخطاء 

E/SQLiteDatabase: Error inserting STATUS=A _SID=5 STATUS_DATE=14.05.2022
    android.database.sqlite.SQLiteConstraintException: 

UNIQUE constraint failed: 

STATUS_TABLE._SID, STATUS_TABLE.STATUS_DATE (code 2067 SQLITE_CONSTRAINT_UNIQUE[2067])

والشيفرة:

package com.example.appmobile;

import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;

import androidx.annotation.Nullable;

class DbHelper extends SQLiteOpenHelper {

    private static final int VERSION = 1;

    private static final String CLASS_TABLE_NAME = "CLASS_TABLE";
    public static final String C_ID = "_CID";
    public static final String CLASS_NAME_KEY = "CLASS_NAME";
    public static final String SUBJECT_NAME_KEY = "SUBJECT_NAME";

    private static final String CREATE_CLASS_TABLE =
            "CREATE TABLE " + CLASS_TABLE_NAME + "(" +
                    C_ID + " INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL," +
                    CLASS_NAME_KEY + " TEXT NOT NULL, " +
                    SUBJECT_NAME_KEY + " TEXT NOT NULL, " +
                    "UNIQUE (" + CLASS_NAME_KEY + "," + SUBJECT_NAME_KEY + ")" +
                    ");";

    private static final String DROP_CLASS_TABLE = "DROP TABLE IF EXISTS "+CLASS_TABLE_NAME;
    private static final String SELECT_CLASS_TABLE = "SELECT * FROM "+CLASS_TABLE_NAME;

    private static final String STUDENT_TABLE_NAME = "STUDENT_TABLE";
    public static final String S_ID = "_SID";
  public static final String STUDENT_NAME_KEY = "STUDENT_NAME";
   public static final String STUDENT_ROLL_KEY = "ROLL";
    private static final String CREATE_STUDENT_TABLE =
    "CREATE TABLE " + STUDENT_TABLE_NAME +
            "( " +
            S_ID + " INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, " +
            C_ID + " INTEGER NOT NULL, "+
            STUDENT_NAME_KEY + " TEXT NOT NULL, " +
            STUDENT_ROLL_KEY + " INTEGER, "+
           " FOREIGN KEY ( "+C_ID+") REFERENCES "+ CLASS_TABLE_NAME + "("+C_ID+")"+
            ");";
    private static final String DROP_STUDENT_TABLE = "DROP TABLE IF EXISTS "+STUDENT_TABLE_NAME;
    private static final String SELECT_STUDENT_TABLE = "SELECT * FROM "+STUDENT_TABLE_NAME;


    private static final String STATUS_TABLE_NAME = "STATUS_TABLE";
   public static final String STATUS_ID = "_STATUS_CID";
   public static final String DATE_KEY = "STATUS_DATE";
    public static final String STATUS_KEY = "STATUS";

    private static final String CREATE_STATUS_TABLE =
            "CREATE TABLE " + STATUS_TABLE_NAME + "(" +
                    STATUS_ID + " INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, "+
                    S_ID + " INTEGER NOT NULL, " +
                    DATE_KEY + " DATE NOT NULL, " +
                    STATUS_KEY + " TEXT NOT NULL, " +
                    "UNIQUE ("+ S_ID + "," + DATE_KEY+"),"+
                    " FOREIGN KEY ("+S_ID+") REFERENCES "+ STUDENT_TABLE_NAME + "( "+S_ID+")"+
                    ");";

    private static final String DROP_STATUS_TABLE = "DROP TABLE IF EXISTS "+STATUS_TABLE_NAME;
    private static final String SELECT_STATUS_TABLE = "SELECT * FROM "+STATUS_TABLE_NAME;
    public DbHelper(@Nullable Context context) {
        super( context, "Attendance.db", null, VERSION  );
    }

    @Override
    public void onCreate(SQLiteDatabase db) {
    db.execSQL(CREATE_CLASS_TABLE);
    db.execSQL(CREATE_STUDENT_TABLE);
    db.execSQL(CREATE_STATUS_TABLE);
    }

    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
        try {
            db.execSQL( DROP_CLASS_TABLE );
            db.execSQL( DROP_STUDENT_TABLE );
            db.execSQL( DROP_STATUS_TABLE );
        }catch (SQLException e){
            e.printStackTrace();
        }
    }
    long addClass(String className,String subjectName){
        SQLiteDatabase database = this.getWritableDatabase();
        ContentValues values = new ContentValues();
        values.put( CLASS_NAME_KEY,className );
        values.put( SUBJECT_NAME_KEY,subjectName );

       return database.insert( CLASS_TABLE_NAME,null,values );
    }
    Cursor getClassTable(){
        SQLiteDatabase database = this.getReadableDatabase();

        return  database.rawQuery( SELECT_CLASS_TABLE,null );
    }
    int deleteClass(long cid){
        SQLiteDatabase database = this.getReadableDatabase();
        return database.delete( CLASS_TABLE_NAME,C_ID+"=?",new String[]{String.valueOf( cid )} );
    }
    long updateClass(long cid,String className,String subjectName){
        SQLiteDatabase database = this.getWritableDatabase();
        ContentValues values = new ContentValues();
        values.put( CLASS_NAME_KEY,className );
        values.put( SUBJECT_NAME_KEY,subjectName );

        return database.update( CLASS_TABLE_NAME,values,C_ID+"=?",new String[]{String.valueOf( cid )});
    }
    long addStudent(long cid,int roll,String name){
        SQLiteDatabase database = this.getWritableDatabase();
        ContentValues values = new ContentValues();
        values.put(C_ID,cid);
        values.put(STUDENT_ROLL_KEY,roll);
        values.put(STUDENT_NAME_KEY,name);
        return database.insert(STUDENT_TABLE_NAME,null,values );
    }
    Cursor getStudentTAble(long cid){
        SQLiteDatabase database = this.getReadableDatabase();
        return  database.query(STUDENT_TABLE_NAME,null,C_ID+"=?",new String[]{String.valueOf( cid )},null,null,STUDENT_ROLL_KEY );
    }
    int deleteStudent(long sid){
        SQLiteDatabase database = this.getReadableDatabase();
        return database.delete( STUDENT_TABLE_NAME,S_ID+"=?",new String[]{String.valueOf( sid )} );
    }
    long updateStudent(long sid,String name){
        SQLiteDatabase database = this.getWritableDatabase();
        ContentValues values = new ContentValues();
        values.put( STUDENT_NAME_KEY,name );

        return database.update( STUDENT_TABLE_NAME,values,S_ID+"=?",new String[]{String.valueOf( sid )});
    }
    long addStatus(long sid,String date, String status){
        SQLiteDatabase database = this.getWritableDatabase();
        ContentValues values = new ContentValues();
        values.put(S_ID,sid);
        values.put(DATE_KEY,date);
        values.put(STATUS_KEY,status);
        return  database.insert(STATUS_TABLE_NAME,null,values);

    }
    long updateStatus(long sid,String date, String status){
        SQLiteDatabase database = this.getWritableDatabase();
        ContentValues values = new ContentValues();
        values.put( STATUS_KEY,status );
        String whereClause = DATE_KEY +"='"+date+"' AND "+S_ID+"="+sid;
        return  database.update( STATUS_TABLE_NAME,values,whereClause,null );
    }
    String getStatus(long sid,String date){
        String status =null;
        SQLiteDatabase database = this.getReadableDatabase();
        String whereClause = DATE_KEY +"='"+date+"' AND "+S_ID+"="+sid;
        Cursor cursor = database.query( STATUS_TABLE_NAME,null,whereClause,null,null,null,null );
        if (cursor.moveToFirst())
            status = cursor.getString( cursor.getColumnIndexOrThrow( STATUS_KEY ) );
        return  status;
    }
}

DbHelper.javaFetching info...