SaveReport.java

 paymentUsersList = new ArrayList<>();

        //create files in reports care folder
        payfile = new File("/storage/emulated/0/Report/");

        //check if they exist, if not create them(directory)
        if ( !payfile.exists()) {
            payfile.mkdirs();
        }
        pFile = new File(payfile, "PaymentUsers.pdf");

        
        fetchPaymentUsers();
    }