Traceback (most recent call last):


 "<stdin>", line 1, in <module>
TypeError: 'unicode' does not have the buffer interface

2018-03-08 14:19:26 INFO (MainThread) [homeassistant.core] Bus:Handling <Event system_log_event[L]: timestamp=1520515166.694072, level=ERROR, message=Error executing service <ServiceCall notify.lametric: title=<homeassistant.helpers.template.Template object at 0x2abc7bd48588>, message=<homeassistant.helpers.template.Template object at 0x2abc7bd48668>>, exception=Traceback (most recent call last):


 "/usr/src/app/homeassistant/core.py", line 1006, in _event_to_service_call

await service_handler.func(service_call)


 "/usr/src/app/homeassistant/components/notify/__init__.py", line 137, in async_notify_message

yield from notify_service.async_send_message(**kwargs)


 "/usr/local/lib/python3.6/asyncio/futures.py", line 327, in __iter__

yield self
# This tells Task to wait for completion.


 "/usr/local/lib/python3.6/asyncio/tasks.py", line 250, in _wakeup

future.result()


 "/usr/local/lib/python3.6/asyncio/futures.py", line 243, in result

raise self._exception


 "/usr/local/lib/python3.6/concurrent/futures/thread.py", line 56, in run

result = self.fn(*self.args, **self.kwargs)


 "/usr/src/app/homeassistant/components/notify/lametric.py", line 97, in send_message

lmn.set_device(dev)


 "/usr/local/lib/python3.6/site-packages/lmnotify/lmnotify.py", line 139, in set_device

self.set_apps_list()


 "/usr/local/lib/python3.6/site-packages/lmnotify/lmnotify.py", line 324, in set_apps_list

result = self._exec(cmd, url)


 "/usr/local/lib/python3.6/site-packages/lmnotify/lmnotify.py", line 80, in _exec

url = url % self.dev["ipv4_internal"]
TypeError: string indices must be integers
