Traceback (most recent call last):
  File "electrum\gui\qt\util.py", line 1443, in on_qt_callback_signal
  File "electrum\gui\qt\main_window.py", line 450, in on_event_blockchain_updated
  File "electrum\gui\qt\main_window.py", line 1066, in refresh_tabs
  File "electrum\util.py", line 483, in do_profile
  File "electrum\gui\qt\history_list.py", line 287, in refresh
  File "electrum\util.py", line 483, in do_profile
  File "electrum\wallet.py", line 1330, in get_full_history
  File "electrum\wallet.py", line 1132, in get_onchain_history
  File "electrum\util.py", line 1190, in func_wrapper
  File "electrum\address_synchronizer.py", line 103, in func_wrapper
  File "electrum\address_synchronizer.py", line 527, in f
  File "electrum\address_synchronizer.py", line 564, in get_history
  File "electrum\util.py", line 1190, in func_wrapper
  File "electrum\address_synchronizer.py", line 103, in func_wrapper
  File "electrum\address_synchronizer.py", line 527, in f
  File "electrum\address_synchronizer.py", line 873, in get_balance
  File "electrum\crypto.py", line 324, in sha256
  File "electrum\util.py", line 621, in to_bytes
MemoryError