When I loaded
https://www.wikidata.org/wiki/Q19861043?debug=1
I got these errors:
{ "errorMessage": "TypeError: wb.Site is not a constructor", "url": "https://www.wikidata.org/static/1.26wmf13/extensions/Wikidata/extensions/Wikibase/lib/resources/wikibase.sites.js", "lineNumber": 42, "columnNumber": 11, "errorObject": {} } { "errorMessage": "TypeError: wikibase.WikibaseContentLanguages is not a constructor", "url": "https://www.wikidata.org/static/1.26wmf13/extensions/Wikidata/extensions/Wikibase/repo/resources/wikibase.ui.entityViewInit.js", "lineNumber": 161, "columnNumber": 22, "errorObject": {} }