ZDF Mediathek funktioniert nicht mehr

17:21:18.781 T:1727001328 WARNING: Repository Kodi Add-on repository uses plain HTTP for add-on downloads - this is insecure and will make your Kodi installation vulnerable to attacks if enabled!
17:21:34.830 T:1539302128   ERROR: EXCEPTION Thrown (PythonToCppException) : -->Python callback/script returned the following error<--
                                             - NOTE: IGNORING THIS CAN LEAD TO MEMORY LEAKS!
                                            Error Type: <type 'exceptions.IndexError'>
                                            Error Contents: list index out of range
                                            Traceback (most recent call last):
                                              File "/home/osmc/.kodi/addons/plugin.video.zdf_de_lite/default.py", line 5, in <module>
                                                libzdf.list()
                                              File "/home/osmc/.kodi/addons/script.module.libzdf/lib/libzdf.py", line 102, in list
                                              File "/home/osmc/.kodi/addons/script.module.libzdf/lib/libzdf.py", line 80, in libZdfListChannelDateVideos
                                              File "/home/osmc/.kodi/addons/script.module.libzdf/lib/libzdf.py", line 42, in libZdfListPage
                                              File "/home/osmc/.kodi/addons/script.module.libzdf/lib/libzdfjsonparser.py", line 36, in parsePage
                                                response = getU(url,True)
                                              File "/home/osmc/.kodi/addons/script.module.libzdf/lib/libzdfjsonparser.py", line 18, in getU
                                                libzdftokengrabber.grepToken()
                                              File "/home/osmc/.kodi/addons/script.module.libzdf/lib/libzdftokengrabber.py", line 8, in grepToken
                                                tokenPlayer = re.compile('"apiToken": "(.+?)"', re.DOTALL).findall(response)[0]
                                            IndexError: list index out of range
                                            -->End of Python script error report<--
17:21:34.845 T:1547690736   ERROR: GetDirectory - Error getting plugin://plugin.video.zdf_de_lite/?channel=ZDF&datum=0&mode=libZdfListChannelDateVideos&yyyymmdd=2018-12-24
17:21:34.847 T:1918312448   ERROR: CGUIMediaWindow::GetDirectory(plugin://plugin.video.zdf_de_lite/?channel=ZDF&datum=0&mode=libZdfListChannelDateVideos&yyyymmdd=2018-12-24) failed