Unable to unlock staked STX + reward stopped 5 months ago

Hello! Seven months ago I staked STX (https://explorer.hiro.so/txid/0x6b81d674a9dcca5933ffd38cdf59e0c8e857bb3fcea0b647f8f700e42d35ae1a?chain=mainnet). Two months later, the BTC rewards stopped, now I noticed that, and am unable to unlock the stacked amount.
Please provide help/guidance!
Thank You!