Errors When Creating Package Body

CREATE OR REPLACE PACKAGE BODY PKG_Q4
  AS
    FUNCTION FN_Q4 (p_Portfolio_Number IN Portfolios.Portfolio_Number%TYPE, p_Stock_Code IN Stocks.Stock_Code%TYPE)
      RETURN v_Return_String
    Is
      v_WA_Return_value varchar2 (50);
      v_F_Name varchar2 (100);
      v_L_Name varchar2 (100);
      v_All_Return_String varchar2 (200);
      
      CURSOR Weighted_Avg_Cursor IS
        Select ((SUM(PRICE_PER_SHARE * QUANTITY)) / (SUM(QUANTITY)))
        FROM Transactions
        Where Transactions.Portfolio_Number = p_Portfolio_Number AND
              Transactions.Stock_Code = p_Stock_Code;
              
      CURSOR Member_Name_Cursor IS
        Select First_Name, Last_Name, Stock_Name, Portfolio_Descrition
        FROM Members, Stocks, Portfolios
        Where Portfolios.Portfolio_Number = p_Portfolio_Number AND
              Portfolios.Member_Number = Members.Member_Number AND
              Stocks.Stock_Code = p_Stock_Code;
    Begin
      Open Member_Name_Cursor;
        Fetch Member_Name_Cursor Into v_F_Name, v_L_Name, v_Stock_Name, v_Portfolio_Description;
        v_All_Return_String := v_F_Name || ' ' || v_L_Name || ' does not have any of the units of the requested stock in the requested portfolio.';
      
      Open Weighted_Avg_Cursor;
          Fetch Weighted_Avg_Cursor Into v_WA_Return_Value;
          If Weighted_Avg_Cursor%FOUND 
           Then
             v_All_Return_String := v_F_Name || ' ' || v_L_Name || 'paid, on average, ' || v_WA_Return_Value || ' for the stock ' || v_Stock_Name || 
                                        ' in the portfolio ' || v_Portfolio_Description;
          End If;
        Close Weighted_Avg_Cursor;
      Close Member_Name_Cursor;
      
      Return v_All_Return_String;
    End FN_Q4;
    
    FUNCTION FN_Q4 (p_Portfolio_Description IN Portfolios.Portfolio_Description%TYPE, p_Member_Number IN Portfolios.Member_Number%TYPE, p_Stock_Name IN Stocks.Stock_Name%TYPE)
      RETURN v_Return_String;
(LINE 43)    IS
      v_WA_Return_value varchar2 (50);
      v_F_Name varchar2 (100);
      v_L_Name varchar2 (100);
      v_All_Return_String varchar2 (200);
    
    CURSOR Weighted_Avg_Cursor IS
        Select ((SUM(PRICE_PER_SHARE * QUANTITY)) / (SUM(QUANTITY)))
        FROM Transactions
        Where Transactions.Portfolio_Description = p_Portfolio_Description AND
              Portfolios.Member_Number = p_Member_Number AND
              Stocks.Stock_Name = p_Stock_Name;
              
    CURSOR Member_Name_Cursor IS
        Select First_Name, Last_Name
        FROM Members
        Where Portfolios.Portfolio_Number = p_Portfolio_Number AND
              Members.Member_Number = p_Member_Number;
              
    Begin
      Open Member_Name_Cursor;
        Fetch Member_Name_Cursor Into v_F_Name, v_L_Name;
        v_All_Return_String := v_F_Name || ' ' || v_L_Name || ' does not have any of the units of the requested stock in the requested portfolio.';
      
      
       Open Weighted_Avg_Cursor;
          Fetch Weighted_Avg_Cursor Into v_WA_Return_Value;
          If Weighted_Avg_Cursor%FOUND 
            Then
              v_All_Return_String := v_F_Name || ' ' || v_L_Name || 'paid, on average, ' || v_WA_Return_Value || ' for the stock ' || p_Stock_Name || 
                                        ' in the portfolio ' || Portfolios.Portfolio_Description;
          End If;
        Close Weighted_Avg_Cursor;
      Close Member_Name_Cursor;
      Return v_All_Return_String;
    
    End FN_Q4;
(LINE 80) END PKG_Q4;
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