Errors/Exceptions thrown on unicode fail with UnicodeEncodeError

[Twilight0]

This unavailable video for instance: https://www.youtube.com/watch?v=ZkfwvNISQn4

Produces this error, as taken from debug log:

2020-07-30 12:44:50.748 T:139643032413952   ERROR: EXCEPTION Thrown (PythonToCppException) : -->Python callback/script returned the following error<--
                                             - NOTE: IGNORING THIS CAN LEAD TO MEMORY LEAKS!
                                            Error Type: <type 'exceptions.UnicodeEncodeError'>
                                            Error Contents: 'ascii' codec can't encode characters in position 0-1: ordinal not in range(128)
                                            Traceback (most recent call last):
                                              File "/home/twilight/.kodi/addons/plugin.video.youtube/resources/lib/default.py", line 15, in <module>
                                                runner.run(__provider__)
                                              File "/home/twilight/.kodi/addons/plugin.video.youtube/resources/lib/youtube_plugin/kodion/runner.py", line 60, in run
                                                __RUNNER__.run(provider, context)
                                              File "/home/twilight/.kodi/addons/plugin.video.youtube/resources/lib/youtube_plugin/kodion/impl/xbmc/xbmc_runner.py", line 33, in run
                                                results = provider.navigate(context)
                                              File "/home/twilight/.kodi/addons/plugin.video.youtube/resources/lib/youtube_plugin/kodion/abstract_provider.py", line 100, in navigate
                                                result = method(context, re_match)
                                              File "/home/twilight/.kodi/addons/plugin.video.youtube/resources/lib/youtube_plugin/kodion/register_provider_path.py", line 19, in wrapper
                                                return func(*args, **kwargs)
                                              File "/home/twilight/.kodi/addons/plugin.video.youtube/resources/lib/youtube_plugin/youtube/provider.py", line 763, in on_play
                                                return yt_play.play_video(self, context)
                                              File "/home/twilight/.kodi/addons/plugin.video.youtube/resources/lib/youtube_plugin/youtube/helper/yt_play.py", line 52, in play_video
                                                context.get_ui().show_notification(message=e.get_message())
                                              File "/home/twilight/.kodi/addons/plugin.video.youtube/resources/lib/youtube_plugin/kodion/impl/xbmc/xbmc_context_ui.py", line 129, in show_notification
                                                _message = utils.to_utf8(message.decode('unicode-escape'))
                                            UnicodeEncodeError: 'ascii' codec can't encode characters in position 0-1: ordinal not in range(128)
                                            -->End of Python script error report<--
2020-07-30 12:44:50.748 T:139643032413952   DEBUG: onExecutionDone(6, /home/twilight/.kodi/addons/plugin.video.youtube/resources/lib/default.py)
2020-07-30 12:44:50.763 T:139645346437824   DEBUG: ------ Window Init (DialogNotification.xml) ------
2020-07-30 12:44:50.776 T:139643032413952    INFO: Python interpreter stopped
2020-07-30 12:44:50.776 T:139643032413952    INFO: Previous line repeats 2 times.
2020-07-30 12:44:50.776 T:139643032413952   DEBUG: Thread LanguageInvoker 139643032413952 terminating
2020-07-30 12:44:50.788 T:139643068606208   DEBUG: Thread scriptobs 139643068606208 terminating
2020-07-30 12:44:50.811 T:139645346437824   DEBUG: ------ Window Deinit (DialogBusy.xml) ------
2020-07-30 12:44:50.811 T:139645346437824   ERROR: Playlist Player: skipping unplayable item: 0, path [plugin://plugin.video.youtube/play/?addon_id=plugin.video.AliveGR&video_id=ZkfwvNISQn4]

Platform: Linux Mint 20 (Ubuntu 20.04)
Kodi 18.8
Youtube addon 6.8.3

[anxdpanic]

#853 should fix it 👍

[eschwarz2411]

kodi.log
Seeems to me that the script for assigning the Google user to the youtube app has the same problem.