HPMSGEN8 You should always try to provide logs. This time I did this for you:
00:32:06.516 T:3447452576 ERROR: EXCEPTION Thrown (PythonToCppException) : -->Python callback/script returned the following error<--
- NOTE: IGNORING THIS CAN LEAD TO MEMORY LEAKS!
Error Type:
Error Contents: 'LibreELEC-8.2'
Traceback (most recent call last):
File "/storage/.kodi/addons/script.libreelec.devupdater/default.py", line 398, in
main.start()
File "/storage/.kodi/addons/script.libreelec.devupdater/default.py", line 78, in start
self.select_build()
File "/storage/.kodi/addons/script.libreelec.devupdater/default.py", line 104, in select_build
build_select = gui.BuildSelectDialog(self.installed_build)
File "/storage/.kodi/addons/script.libreelec.devupdater/resources/lib/gui.py", line 79, in __init__
self._builds = self._get_build_links(self._build_url)
File "/storage/.kodi/addons/script.libreelec.devupdater/resources/lib/utils.py", line 90, in busy_wrapper
return f(*args, **kwargs)
File "/storage/.kodi/addons/script.libreelec.devupdater/resources/lib/gui.py", line 212, in _get_build_links
links = build_url.builds()
File "/storage/.kodi/addons/script.libreelec.devupdater/resources/lib/builds.py", line 268, in builds
return sorted(self._extractor(self.url), reverse=True)
File "/storage/.kodi/addons/script.libreelec.devupdater/resources/lib/builds.py", line 208, in __iter__
releases = self._json()[libreelec.release()]['project'][config.arch]['releases']
KeyError: 'LibreELEC-8.2'
-->End of Python script error report<--
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Clearly there is an issue with the addon. I don't know Python well enough to help you, you should seek advice with the addon author.