Improve error-handling

freqtrade/freqtradebot.py

@@ -1824,6 +1824,7 @@ class FreqtradeBot(LoggingMixin):
                 # Must also run for partial exits
                 # TODO: Margin will need to use interest_rate as well.
                 # interest_rate = self.exchange.get_interest_rate()
+                try:
                     trade.set_liquidation_price(self.exchange.get_liquidation_price(
                         pair=trade.pair,
                         open_rate=trade.open_rate,
@@ -1833,7 +1834,8 @@ class FreqtradeBot(LoggingMixin):
                         leverage=trade.leverage,
                         wallet_balance=trade.stake_amount,
                     ))
-
+                except DependencyException:
+                    logger.warning('Unable to calculate liquidation price')
             # Updating wallets when order is closed
             self.wallets.update()
         Trade.commit()