Traceback (most recent call last):
  File "electrum/gui/qt/main_window.py", line 132, in onPress
  File "electrum/gui/qt/__init__.py", line 276, in show_network_dialog
  File "electrum/gui/qt/network_dialog.py", line 61, in __init__
  File "electrum/gui/qt/network_dialog.py", line 320, in __init__
  File "electrum/gui/qt/network_dialog.py", line 368, in update
  File "electrum/gui/qt/network_dialog.py", line 153, in update
  File "electrum/blockchain.py", line 244, in get_name
  File "electrum/blockchain.py", line 511, in get_hash
  File "electrum/util.py", line 1150, in func_wrapper
  File "electrum/blockchain.py", line 472, in read_header
Exception: Expected to read a full header. This was only 0 bytes