Traceback (most recent call last):


 "/usr/local/lib/python3.7/asyncio/events.py", line 88, in _run

self._context.run(self._callback, *self._args)


 "/usr/local/lib/python3.7/site-packages/aiohttp/web_ws.py", line 102, in _send_heartbeat

self._loop.create_task(self._writer.ping())
# type: ignore
AttributeError: 'NoneType' object has no attribute 'ping'

Traceback (most recent call last):


 "hummingbot\core\clock.pyx", line 119, in hummingbot.core.clock.Clock.run_til


 "hummingbot\strategy\pure_market_making\pure_market_making.pyx", line 583, in hummingbot.strategy.pure_market_making.pure_market_making.PureMarketMakingStrategy.c_tick


 "hummingbot\strategy\pure_market_making\pure_market_making.pyx", line 609, in hummingbot.strategy.pure_market_making.pure_market_making.PureMarketMakingStrategy.c_create_base_proposal


 "hummingbot\strategy\pure_market_making\pure_market_making.pyx", line 338, in hummingbot.strategy.pure_market_making.pure_market_making.PureMarketMakingStrategy.c_get_mid_price


 "hummingbot\strategy\market_trading_pair_tuple.py", line 33, in get_mid_price


 "hummingbot\market\market_base.pyx", line 109, in hummingbot.market.market_base.MarketBase.get_mid_price


 "hummingbot\market\market_base.pyx", line 316, in hummingbot.market.market_base.MarketBase.get_price


 "hummingbot\market\market_base.pyx", line 215, in hummingbot.market.market_base.MarketBase.c_get_price


 "hummingbot\market\market_base.pyx", line 190, in hummingbot.market.market_base.MarketBase.c_quantize_order_price


 "hummingbot\market\kraken\kraken_market.pyx", line 1126, in hummingbot.market.kraken.kraken_market.KrakenMarket.c_get_order_price_quantum
KeyError: 'GBPUSD'`
