```
6.15 | E | gui.qt.exception_window.Exception_Hook | exception caught by crash reporter
Traceback (most recent call last):
File "/home/user/wspace/electrum/electrum/gui/qt/history_list.py", line 637, in plot_history_dialog
plt = plot_history(list(self.hm.transactions.values()))
File "/home/user/wspace/electrum/electrum/plot.py", line 24, in plot_history
if not item['confirmations']:
KeyError: 'confirmations'
```
