One of your pool frontends are serving cached/stale content - check out the Network Hashrate (stuck at 50GHs) by refreshing few times.

Also, you might want to consider adding VBC to:
- miningpoolstats.stream
- coinmarketcap.com
- coinpaprika.com
- minerstat.com
- and many others, perhaps something local to Japan

Perhaps also reach out to rplant.xyz for another pool and batch of miners.

Cheers mate!