Some tokens in the wallet can be staked. The staking tokens themselves will stay in the wallet, but they cannot be sent. The wallet balance will also show the quantity of tokens that are not staking. If you want to send a token that is staking, you need to unstake it. (See the Unstaking section.)
Rewards are distributed on a block-by-block basis. A block is generated approximately every 7 seconds. (You can see the "Reward" in the wallet increasing.) To receive the reward, the user must request the blockchain to "receive the reward". This is because the rewards are not distributed automatically. Please note that you must pay Gas in order to receive the reward. When you stake or unstake additional tokens, you will receive rewards automatically. Don't worry, your accumulated rewards will revert to zero.
When you send a staked token, you need to unstake it. However, even if you unstalk the token, it will be in the "unstalking request" status for 21 days, and you will not be able to send money immediately. This period when you cannot send money is called the "lock period". Please note that you will not be able to send money immediately after unstaking a staked token. Please note that you can choose the quantity of tokens you want to unstake, but you can only apply for unstaking up to 7 times at the same time.