CPU: share rejected. Why? What can I do, help me, please!

[solustore-h]

Help!

All adjustments were made according to the nodejs-pool config.

id │ name │ mode │ ↺ │ status │ cpu │ memory │
├────┼────────────────────┼──────────┼──────┼───────────┼──────────┼──────────┤
│ 1 │ api │ fork │ 1 │ online │ 0% │ 19.8mb │
│ 2 │ blockManager │ fork │ 1 │ online │ 0% │ 110.1mb │
│ 6 │ longRunner │ fork │ 0 │ online │ 0% │ 68.5mb │
│ 8 │ monero-wallet-rpc │ fork │ 5 │ online │ 0% │ 41.2mb │
│ 4 │ payments │ fork │ 0 │ online │ 0% │ 64.8mb │
│ 7 │ pool │ fork │ 0 │ online │ 127.3% │ 109.4mb │
│ 5 │ remoteShare │ fork │ 0 │ online │ 4.5% │ 85.9mb │
│ 3 │ worker │ fork │ 27 │ online │ 0% │ 70.9mb

RUNNING THE MINER XMR-STAK:

[2021-05-19 13:33:52] : Fast-connecting to MY-IP:7777 pool ...
[2021-05-19 13:33:53] : Pool MY-IP:7777 connected. Logging in...
[2021-05-19 13:33:55] : Difficulty changed. Now: 19355.
[2021-05-19 13:33:55] : Pool logged in.
[2021-05-19 13:34:46] : CPU: Share rejected. Pool: MY-IP:7777
[2021-05-19 13:34:46] : Difficulty changed. Now: 19356.
[2021-05-19 13:34:46] : New block detected.

CPU: share rejected. Why?
What can I do, help me, please!