Table has no column named xyz while inserting data into SQLite database

It says that the column name bmi does not exist. The resulting Error message is that the system cannot find a column called bmi. I checked it already a couple of times and I couldn't find a mistake in the code. Maybe you guys see one... The full Stack Dump is attached after the code.

public class MyDBHandler extends SQLiteOpenHelper{

private static final int DATABASE_VERSION = 1;
private static final String DATABASE_NAME = "bmiwerte.db";

public static final String TABLE_BMIS = "bmis";
public static final String COLUMN_ID = "_id";
public static final String COLUMN_NAME = "name";
public static final String COLUMN_BMI = "bmi";


public MyDBHandler(Context context, String name, SQLiteDatabase.CursorFactory factory, int version) {
    super(context, DATABASE_NAME, factory, DATABASE_VERSION);
}

private static final String CREATE_TABLE_BMIS = "CREATE TABLE "
        +TABLE_BMIS
        +" ("
        +COLUMN_ID
        +" INTEGER AUTOINCREMENT, "
        +COLUMN_NAME
        +" TEXT PRIMARY KEY"
        +COLUMN_BMI
        +" TEXT"
        +");";

@Override
public void onCreate(SQLiteDatabase db) {

    //Lässt Query in SQL laufen
    Log.i("exxxx", "Creating Check");
    db.execSQL(CREATE_TABLE_BMIS);
}

@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
    db.execSQL("DROP TABLE IF EXIST " + TABLE_BMIS);
    onCreate(db);
}

public void addValues(BMI_Werte wert){
    ContentValues values = new ContentValues();

    values.put(COLUMN_NAME, wert.get_name());
    values.put(COLUMN_BMI, wert.get_bmiWert().toString());
    Log.i("exxx", wert.get_name());
    Log.i("exxxx", wert.get_bmiWert().toString());

    SQLiteDatabase db = getWritableDatabase();
    db.insert(TABLE_BMIS, null, values);
    db.close();
}

public void deleteValues(String name){
    Log.i("exxxx", "deleteValuse");
    SQLiteDatabase db = getWritableDatabase();
    db.execSQL("DELETE FROM " + TABLE_BMIS + " WHERE " +
            COLUMN_NAME + "=\"" + name + "\";");
}

public String databaseToString(){
    String dbString = "";
    SQLiteDatabase db = this.getWritableDatabase();

    String query = "SELECT * FROM " + TABLE_BMIS;
    String test = "DESCRIBE " + TABLE_BMIS;

    Cursor c = db.rawQuery(query, null);

    c.moveToFirst();

    while(!c.isAfterLast()){
        if(c.getString(c.getColumnIndex("name")) != null){
            dbString += c.getString(c.getColumnIndex("name"));
            dbString += "\n";
        }
        c.moveToNext();
    }

    db.close();
    return dbString;
}

}

Error and Stack Dump:

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