Reset or cancel all orders after price failing to update

[Desrever Nu]

When receiving a failure notification, the bot should take action and cancel all orders or try to reset them, to avoid having price changing in the meantime .

"Problems while updating btc price. Cannot find a reliable feed.NuBot timed out after 5 failed attempts to update btc price. Please restart the bot and get in touch with Nu Dev team (desrever-test)"

[Sam Griffiths]

Added a clear orders call after the call to the sendErrorNotifications method