fix #4037 (new issue but was merged into that)

gui/qt/history_list.py

@@ -174,13 +174,13 @@ class HistoryList(MyTreeWidget, AcceptFileDragDrop):
         grid = QGridLayout()
         grid.addWidget(QLabel(_("Start")), 0, 0)
         grid.addWidget(QLabel(self.format_date(start_date)), 0, 1)
-        grid.addWidget(QLabel(str(h['start_fiat_value']) + '/BTC'), 0, 2)
+        grid.addWidget(QLabel(str(h.get('start_fiat_value')) + '/BTC'), 0, 2)
         grid.addWidget(QLabel(_("Initial balance")), 1, 0)
         grid.addWidget(QLabel(format_amount(h['start_balance'])), 1, 1)
         grid.addWidget(QLabel(str(h.get('start_fiat_balance'))), 1, 2)
         grid.addWidget(QLabel(_("End")), 2, 0)
         grid.addWidget(QLabel(self.format_date(end_date)), 2, 1)
-        grid.addWidget(QLabel(str(h['end_fiat_value']) + '/BTC'), 2, 2)
+        grid.addWidget(QLabel(str(h.get('end_fiat_value')) + '/BTC'), 2, 2)
         grid.addWidget(QLabel(_("Final balance")), 4, 0)
         grid.addWidget(QLabel(format_amount(h['end_balance'])), 4, 1)
         grid.addWidget(QLabel(str(h.get('end_fiat_balance'))), 4, 2)