I've been working on a project and I'm stuck at how to display a certain info when I found the word. For example. I want to search the balance sheet data of January 2015 and it will display the rest of the info in the file when found the exact month and year. I then would update that certain info if needed. I tried to make a search function but my program crashes all the time. Is it because as the file is being read, are the data not stored into their respective variables?

  class BalanceSheet
{
    //total
    double assets;
    double totalLiabilities;
    double totalEquity;
    double totalLiabilitiesAndEquity;
    string departmentName;
    int serialNo;
    int serialNo_Inc;
public:
    string month;
    string year;
    double cash;
    double accountsReceivable;
    double inventory;
    double building;
    double land;
    double equipment;
    double otherAssets;
    //liabilities
    double accountsPayable;
    double loansPayable;
    //equity
    double equity;
    double retainedEarnings;
    BalanceSheet *balanceSheetNext = NULL;
    BalanceSheet()
    {
        assets = 0;
        totalEquity = 0;
        totalLiabilities = 0;
        totalLiabilitiesAndEquity = 0;
        assets = cash + accountsReceivable + inventory + building + land + equipment + otherAssets;
        accountsPayable = accountsReceivable;
        loansPayable = land;
        equity = cash + accountsReceivable + inventory + otherAssets;
        retainedEarnings = assets - (equipment + inventory + otherAssets);
        totalEquity = equity + retainedEarnings;
        totalLiabilities = accountsPayable + loansPayable;
        totalLiabilitiesAndEquity = totalLiabilities + totalEquity;
    }
    void setDataForFile(ifstream &fileBalanceSheetInput)
    {
        serialNo = serialNo_Inc++;
        fileBalanceSheetInput >> month;
        fileBalanceSheetInput >> year;
        fileBalanceSheetInput >> cash;
        fileBalanceSheetInput >> accountsReceivable;
        fileBalanceSheetInput >> inventory;
        fileBalanceSheetInput >> land;
        fileBalanceSheetInput >> building;
        fileBalanceSheetInput >> equipment;
        fileBalanceSheetInput >> otherAssets;
    }
    void setDataManual()
    {
        cout << "Serial Number " <<endl;
        serialNo = serialNo_Inc++;
        cout << "Month: ";
        cin >> month;
        cout << endl;
        cout << "Year: ";
        cin >> year;
        cout << endl;
        cout << "Cash: ";
        cin >> cash;
        cout << endl;
        cout << "Accounts Receivable: ";
        cin >> accountsReceivable;
        cout << endl;
        cout << "Inventory: ";
        cin >> inventory;
        cout << endl;
        cout << "Land: ";
        cin >> land;
        cout << endl;
        cout << "Building: ";
        cin >> building;
        cout << endl;
        cout << "Equipment: ";
        cin >> equipment;
        cout << endl;
        cout << "Other Assets: ";
        cin >> otherAssets;
        cout << endl;
    }
    void updateBalanceSheet(BalanceSheet *bsUpdateNode, string = "", string year = "", double cash = 0, double accountsReceivable = 0, double inventory = 0, double building = 0, double land =0, double equipment = 0, double otherAssets = 0)
    {
        bsUpdateNode->cash = cash;
        bsUpdateNode->accountsReceivable = accountsReceivable;
        bsUpdateNode->inventory = inventory;
        bsUpdateNode->building = building;
        bsUpdateNode->land =  land;
        bsUpdateNode->equipment = equipment;
        bsUpdateNode->otherAssets = otherAssets;
    }

    void displayRecord()
    {
        assets = cash + accountsReceivable + inventory + building + land+ equipment + otherAssets;
        accountsPayable = accountsReceivable;
        loansPayable = land;
        equity = cash + accountsReceivable + inventory + otherAssets;
        retainedEarnings = assets - (equipment + inventory + otherAssets);
        totalEquity = equity + retainedEarnings;
        totalLiabilities = accountsPayable + loansPayable;
        totalLiabilitiesAndEquity = totalLiabilities + totalEquity;
        cout << "Serial Number" << serialNo;
        cout << "---------Election Commissions---------" << endl;
        cout << month << ", " << year << "---------" << endl;
        cout << endl;
        cout << "-------------------" << endl;
        cout << "ASSETS: " << endl;
        cout << "-------------------" << endl;
        cout << "Cash: " << "\t\t\t Tk." << cash << endl;
        cout << "Accounts Receivable: " << "\t\t\t Tk." << accountsReceivable << endl;
        cout << "Inventories: " << "\t\t\t Tk." << inventory << endl;
        cout << "Land: " << "\t\t\t Tk." << land << endl;
        cout << "Buildings: " << "\t\t\t Tk." << building << endl;
        cout << "Equipment: " << "\t\t\t Tk." << equipment << endl;
        cout << "Other assets: " << "\t\t\t Tk." << otherAssets << endl;
        cout << "---Total Assets---\t\t\t Tk." << assets << endl;
        cout << endl;
        cout << "-------------------" << endl;
        cout << "LIABILITIES: " << endl;
        cout << "-------------------" << endl;
        cout << endl;
        cout << "Accounts Payable: " << "\t\t\t Tk." << accountsPayable << endl;
        cout << "Loans Payable: " << "\t\t\t Tk." << loansPayable << endl;
        cout << "---Total Liabilities---\t\t\t Tk." << totalLiabilities << endl;
        cout << endl;
        cout << "-------------------" << endl;
        cout << "EQUITY: " << endl;
        cout << "-------------------" << endl;
        cout << endl;
        cout << "Retained Earnings: " << "\t\t\t Tk." << retainedEarnings << endl;
        cout << "Equity: " << "\t\t\t Tk." << equity << endl;
        cout << "---Total Equity---\t\t\t Tk." << totalEquity << endl;
        cout << endl;
        cout << "---Total Equity and Liabilities---\t\t\t Tk."<< totalLiabilitiesAndEquity << endl;
    }
    void pushIntoDatabaseForBalanceSheet(BalanceSheet *balanceSheetNode)
    {
        ofstream bsFile;
        bsFile.open("BalanceSheet3.txt", ofstream::out | ofstream::app );
        while (balanceSheetNode)
        {
            balanceSheetNode->assets = balanceSheetNode->cash + balanceSheetNode->accountsReceivable + balanceSheetNode->inventory + balanceSheetNode->building + balanceSheetNode->land+ balanceSheetNode->equipment + balanceSheetNode->otherAssets;
            balanceSheetNode->accountsPayable = balanceSheetNode->accountsReceivable;
            balanceSheetNode->loansPayable = balanceSheetNode->land;
            balanceSheetNode->equity = balanceSheetNode->cash + balanceSheetNode->accountsReceivable + balanceSheetNode->inventory + balanceSheetNode->otherAssets;
            balanceSheetNode->retainedEarnings = balanceSheetNode->assets - (balanceSheetNode->equipment + balanceSheetNode->inventory + balanceSheetNode->otherAssets);
            balanceSheetNode->totalEquity =balanceSheetNode->equity + balanceSheetNode->retainedEarnings;
            balanceSheetNode->totalLiabilities = balanceSheetNode->accountsPayable + balanceSheetNode->loansPayable;
            balanceSheetNode->totalLiabilitiesAndEquity = balanceSheetNode->totalLiabilities + balanceSheetNode->totalEquity;
            bsFile << "---------Election Commissions---------" << "\n";
            bsFile << balanceSheetNode->month << ", " << balanceSheetNode->year << "---------" << "\n";
            bsFile << "-------------------" << endl;
            bsFile << "ASSETS: "<< "\n";
            bsFile << "-------------------" << endl;
            bsFile << "Cash: " << "\t\t\t Tk." << balanceSheetNode->cash << "\n";
            bsFile << "Accounts Receivable: " << "\t\t\t Tk." << balanceSheetNode->accountsReceivable << "\n";
            bsFile << "Inventories: " << "\t\t\t Tk." << balanceSheetNode->inventory << "\n";
            bsFile << "Land: " << "\t\t\t Tk." << balanceSheetNode->land << "\n";
            bsFile << "Buildings: " << "\t\t\t Tk." << balanceSheetNode->building << "\n";
            bsFile << "Equipment: " << "\t\t\t Tk." << balanceSheetNode->equipment << "\n";
            bsFile << "Other assets: " << "\t\t\t Tk." << balanceSheetNode->otherAssets << "\n";
            bsFile << "---Total Assets---\t\t\t \nTk." << balanceSheetNode->assets << "\n";
            bsFile << "-------------------" << endl;
            bsFile << "LIABILITIES: " << "\n";
            bsFile << "-------------------" << endl;
            bsFile << "Accounts Payable: " << "\t\t\t Tk." << balanceSheetNode->accountsPayable << "\n";
            bsFile << "Loans Payable: " << "\t\t\t Tk." << balanceSheetNode->loansPayable << "\n";
            bsFile << "---Total Liabilities---\t\t\t \nTk." << balanceSheetNode->totalLiabilities << "\n";
            bsFile << "-------------------" << endl;
            bsFile << "EQUITY: " << "\n";
            bsFile << "-------------------" << endl;
            bsFile << "Retained Earnings: " << "\t\t\t Tk." << balanceSheetNode->retainedEarnings << "\n";
            bsFile << "Equity: " << "\t\t\t Tk." << balanceSheetNode->equity << "\n";
            bsFile << "---Total Equity---\t\t\t Tk." << balanceSheetNode->totalEquity << "\n";
            bsFile << "\n";
            bsFile << "---Total Equity and Liabilities---\t\t\t \nTk." << "\n" << balanceSheetNode->totalLiabilitiesAndEquity << "\n";

            balanceSheetNode = balanceSheetNode->balanceSheetNext;
            bsFile << "\n";
        }
        bsFile.close();
    }

};

BalanceSheet *balanceSheetFirstPoint = NULL;
BalanceSheet *balanceSheetTempPoint;
BalanceSheet bs;
void GetBalanceSheetMonthly(int NUMBER_INDICES)
{
    for (int i = 1; i <= NUMBER_INDICES; i++)
    {
        balanceSheetTempPoint = new BalanceSheet;
        if (!balanceSheetFirstPoint)
        {
            balanceSheetTempPoint->setDataManual();
            balanceSheetFirstPoint = balanceSheetTempPoint;
        }
        else
        {
            balanceSheetTempPoint->setDataManual();
            balanceSheetTempPoint->balanceSheetNext = balanceSheetTempPoint;
            balanceSheetFirstPoint = balanceSheetTempPoint;
            bs.pushIntoDatabaseForBalanceSheet(balanceSheetFirstPoint);
        }
    }
}


void showBalanceSheetMonthly()
{
    balanceSheetTempPoint = balanceSheetFirstPoint;
    while (balanceSheetTempPoint)
    {
        balanceSheetTempPoint->displayRecord();
        balanceSheetTempPoint = balanceSheetTempPoint->balanceSheetNext;
        cout << endl;
    }
}

    BalanceSheet searchBS(BalanceSheet *bsFirstPoint, string month, string year)
    {
        BalanceSheet *tempPoint;
        tempPoint = bsFirstPoint;
        BalanceSheet found;
        while (tempPoint)
        {
            if (tempPoint->month == month && tempPoint->year==year)
            {
                  found = *tempPoint;
                return found;
            }
            tempPoint = tempPoint->balanceSheetNext;
        }
    }
    void findNode(string month, string year)
    {
        searchBS(balanceSheetFirstPoint, month, year);
    }