{{PLURAL:}} has duplicate forms at the end. {{PLURAL:$1|sheep|sheep}} should be written as {{PLURAL:$1|sheep}}.
MediaWiki:Translate-checks-plural-dupe
[+/-]
Widgets
Widgets<bs-widget-edit>
From Asterix & Friends - Wiki
{{PLURAL:}} has duplicate forms at the end. {{PLURAL:$1|sheep|sheep}} should be written as {{PLURAL:$1|sheep}}.