@julian while we are at Japanese, why does it have (ja)? Shouldn't it be (jp)? I don't know if the others are correct, but from what I see, this one is the only strange one. and why are the two below English (United Kingdom) also flagged as EN_GB?
Then navigate to http://your_domain_or_ip.com:8081 and do what you need to do. You can also use redis-cli but if you're unfamiliar with Redis, like me, this is the way to go. Just don't delete anything right away. Make a backup first.