File "/tmp/.mount_electr7O1LI8/usr/lib/python3.6/site-packages/electrum/gui/qt/qrcodewidget.py", line 62, in paintEvent
    matrix = self.qr.get_matrix()
  File "/tmp/.mount_electr7O1LI8/usr/lib/python3.6/site-packages/qrcode/main.py", line 428, in get_matrix
    self.make()
  File "/tmp/.mount_electr7O1LI8/usr/lib/python3.6/site-packages/qrcode/main.py", line 93, in make
    self.best_fit(start=self.version)
  File "/tmp/.mount_electr7O1LI8/usr/lib/python3.6/site-packages/qrcode/main.py", line 165, in best_fit
    raise exceptions.DataOverflowError()