Json error code: 3 NC 11 to NC11.0.1 upgrade

I keep getting this warning after upgrading to NC 11.0.1 i was on NC 11

Warning l10n Failed to load /var/www/nextcloud/apps/files/l10n/zh_CN.json - json error code: 3

Can anyone help?

ref: https://github.com/nextcloud/server/issues/3189