Historia de Cerdeña -> corresponding page is Història de Sardenya
Traceback (most recent call last):
  File "C:\pwb\core\pwb.py", line 135, in <module>
    run_python_file(fn, argv, argvu)
  File "C:\pwb\core\pwb.py", line 67, in run_python_file
    exec(compile(source, filename, "exec"), main_mod.__dict__)
  File "C:\pwb\core\scripts\featured.py", line 683, in <module>
    main()
  File "C:\pwb\core\scripts\featured.py", line 676, in main
    bot.run()
  File "C:\pwb\core\scripts\featured.py", line 285, in run
    self.run_good()
  File "C:\pwb\core\scripts\featured.py", line 320, in run_good
    self.treat(code, task)
  File "C:\pwb\core\scripts\featured.py", line 372, in treat
    self.featuredWithInterwiki(fromsite, process)
  File "C:\pwb\core\scripts\featured.py", line 612, in featuredWithInterwiki
    atrans.put(text, comment)
  File "C:\pwb\core\pywikibot\page.py", line 906, in put
    async=async, callback=callback, **kwargs)
  File "C:\pwb\core\pywikibot\page.py", line 827, in save
    **kwargs)
  File "C:\pwb\core\pywikibot\page.py", line 834, in _save
    comment = self._cosmetic_changes_hook(comment) or comment
  File "C:\pwb\core\pywikibot\page.py", line 884, in _cosmetic_changes_hook
    self.text = ccToolkit.change(old)
  File "C:\pwb\core\scripts\cosmetic_changes.py", line 174, in change
    text = self.cleanUpLinks(text)
  File "C:\pwb\core\scripts\cosmetic_changes.py", line 510, in cleanUpLinks
    'startspace'])
  File "C:\pwb\core\pywikibot\textlib.py", line 208, in replaceExcept
    replacement = new(match)
  File "C:\pwb\core\scripts\cosmetic_changes.py", line 396, in handleOneLink
    if not self.site.isInterwikiLink(titleWithSection):
  File "C:\pwb\core\pywikibot\site.py", line 381, in isInterwikiLink
    linkfam, linkcode = pywikibot.Link(text, self).parse_site()
  File "C:\pwb\core\pywikibot\page.py", line 3102, in __init__
    t = url2unicode(t, site=self._source)
  File "C:\pwb\core\pywikibot\page.py", line 3546, in url2unicode
    raise firstException
UnicodeDecodeError: 'utf8' codec can't decode byte 0x80 in position 12: invalid start byte