addshore@fluorine:/a/mw-log$ cat exception.log |grep -A 20 VxZKrQrAEHUAAJeU5BwAAAAH
2016-04-19 15:11:41 [VxZKrQrAEHUAAJeU5BwAAAAH] mw2144 wikidatawiki 1.27.0-wmf.21 exception ERROR: [VxZKrQrAEHUAAJeU5BwAAAAH] /w/api.php?action=wbsgetsuggestions&search=&context=item&format=json&language=it&continue=0&entity=Q23889720   InvalidArgumentException from line 61 of /srv/mediawiki/php-1.27.0-wmf.21/extensions/Wikidata/extensions/PropertySuggester/src/PropertySuggester/SuggestionGenerator.php: Item Q23889720 could not be found {"exception_id":"VxZKrQrAEHUAAJeU5BwAAAAH"}
[Exception InvalidArgumentException] (/srv/mediawiki/php-1.27.0-wmf.21/extensions/Wikidata/extensions/PropertySuggester/src/PropertySuggester/SuggestionGenerator.php:61) Item Q23889720 could not be found
  #0 /srv/mediawiki/php-1.27.0-wmf.21/extensions/Wikidata/extensions/PropertySuggester/src/PropertySuggester/GetSuggestions.php(96): PropertySuggester\SuggestionGenerator->generateSuggestionsByItem(string, integer, double, string)
  #1 /srv/mediawiki/php-1.27.0-wmf.21/includes/api/ApiMain.php(1365): PropertySuggester\GetSuggestions->execute()
  #2 /srv/mediawiki/php-1.27.0-wmf.21/includes/api/ApiMain.php(468): ApiMain->executeAction()
  #3 /srv/mediawiki/php-1.27.0-wmf.21/includes/api/ApiMain.php(434): ApiMain->executeActionWithErrorHandling()
  #4 /srv/mediawiki/php-1.27.0-wmf.21/api.php(83): ApiMain->execute()
  #5 /srv/mediawiki/w/api.php(3): include(string)
  #6 {main}