crash

Traceback (most recent call last):
  File "/home/kelsos/.virtualenvs/raiden-develop/bin/raiden", line 11, in <module>
    load_entry_point('raiden', 'console_scripts', 'raiden')()
  File "/home/kelsos/development/github/raiden-network/raiden/raiden/__main__.py", line 13, in main
    run(auto_envvar_prefix="RAIDEN")  # pylint: disable=no-value-for-parameter
  File "/home/kelsos/.virtualenvs/raiden-develop/lib/python3.7/site-packages/click/core.py", line 764, in __call__
    return self.main(*args, **kwargs)
  File "/home/kelsos/.virtualenvs/raiden-develop/lib/python3.7/site-packages/click/core.py", line 717, in main
    rv = self.invoke(ctx)
  File "/home/kelsos/.virtualenvs/raiden-develop/lib/python3.7/site-packages/click/core.py", line 1114, in invoke
    return Command.invoke(self, ctx)
  File "/home/kelsos/.virtualenvs/raiden-develop/lib/python3.7/site-packages/click/core.py", line 956, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/kelsos/.virtualenvs/raiden-develop/lib/python3.7/site-packages/click/core.py", line 555, in invoke
    return callback(*args, **kwargs)
  File "/home/kelsos/.virtualenvs/raiden-develop/lib/python3.7/site-packages/click/decorators.py", line 17, in new_func
    return f(get_current_context(), *args, **kwargs)
  File "/home/kelsos/development/github/raiden-network/raiden/raiden/ui/cli.py", line 568, in run
    app = runner.run()
  File "/home/kelsos/development/github/raiden-network/raiden/raiden/ui/runners.py", line 243, in run
    return self._start_services()
  File "/home/kelsos/development/github/raiden-network/raiden/raiden/ui/runners.py", line 92, in _start_services
    app_ = run_app(**self._options)
  File "/home/kelsos/development/github/raiden-network/raiden/raiden/ui/app.py", line 353, in run_app
    raiden_app.start()
  File "/home/kelsos/development/github/raiden-network/raiden/raiden/app.py", line 137, in start
    self.raiden.start()
  File "/home/kelsos/development/github/raiden-network/raiden/raiden/raiden_service.py", line 346, in start
    node_address=self.address,
  File "/home/kelsos/development/github/raiden-network/raiden/raiden/storage/wal.py", line 76, in restore_to_state_change
    wal.state_manager.dispatch(unapplied_state_changes)
  File "/home/kelsos/development/github/raiden-network/raiden/raiden/transfer/architecture.py", line 260, in dispatch
    iteration = self.state_transition(next_state, state_change)
  File "/home/kelsos/development/github/raiden-network/raiden/raiden/transfer/node.py", line 1184, in state_transition
    iteration = handle_state_change(chain_state, state_change)
  File "/home/kelsos/development/github/raiden-network/raiden/raiden/transfer/node.py", line 874, in handle_state_change
    iteration = handle_token_network_action(chain_state, state_change)
  File "/home/kelsos/development/github/raiden-network/raiden/raiden/transfer/node.py", line 543, in handle_token_network_action
    pseudo_random_generator=chain_state.pseudo_random_generator,
  File "/home/kelsos/development/github/raiden-network/raiden/raiden/transfer/token_network.py", line 413, in state_transition
    pseudo_random_generator=pseudo_random_generator,
  File "/home/kelsos/development/github/raiden-network/raiden/raiden/transfer/token_network.py", line 167, in handle_balance
    pseudo_random_generator=pseudo_random_generator,
  File "/home/kelsos/development/github/raiden-network/raiden/raiden/transfer/token_network.py", line 61, in subdispatch_to_channel_by_id
    pseudo_random_generator=pseudo_random_generator,
  File "/home/kelsos/development/github/raiden-network/raiden/raiden/transfer/channel.py", line 2573, in state_transition
    iteration = handle_channel_deposit(channel_state, state_change)
  File "/home/kelsos/development/github/raiden-network/raiden/raiden/transfer/channel.py", line 2380, in handle_channel_deposit
    events = update_fee_schedule_after_balance_change(channel_state, state_change.fee_config)
  File "/home/kelsos/development/github/raiden-network/raiden/raiden/transfer/channel.py", line 2357, in update_fee_schedule_after_balance_change
    proportional_imbalance_fee=proportional_imbalance_fee,
  File "/home/kelsos/development/github/raiden-network/raiden/raiden/transfer/mediated_transfer/mediation_fee.py", line 155, in calculate_imbalance_fees
    a = c / o ** b
OverflowError: (34, 'Numerical result out of range')