[[:MediaWiki:Prem-whitelist-invalid-ip/en]]
The english text of MediaWiki:Prem-whitelist-invalid-ip/en: "You've enter invalid IP address." sounds strange to me I suggest to replace it either with "You've entered an invalid IP address." or "You entered an invalid IP adress"
Thanks. I've done an L10n review on the extension and updated a few more things.