try to mine btc in mining pool hub and alwys get rejected shares .... what i am doing wrong ?

thx


+-------------------------------------------------+
|         EWBF's Eqihash CUDA miner. v0.4         |
+-------------------------------------------------+
19:13:13 INFO: Configured pools: 1
19:13:13 INFO: Selected pool: europe.equihash-hub.miningpoolhub.com:20595
19:13:13 INFO: Algorithm: 144_5
19:13:13 INFO: Devices: All.
19:13:13 INFO: Temperature limit: 80
19:13:13 INFO: Api: Disabled
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19:13:14 INFO: Target: 000da740da740da7...
19:13:14 INFO: Detected new work: a317
19:13:15 CUDA: Device: 0 GeForce GTX 1080 Ti, 11171 MB i:64
19:13:15 CUDA: Device: 1 GeForce GTX 1080 Ti, 11172 MB i:64
19:13:15 CUDA: Device: 2 GeForce GTX 1080 Ti, 11172 MB i:64
19:13:44 Temp: GPU0: 71C GPU1: 71C GPU2: 70C
19:13:44 GPU0: 50 Sol/s GPU1: 51 Sol/s GPU2: 55 Sol/s
19:13:44 Total speed: 156 Sol/s
19:13:59 INFO: GPU0 Rejected share 403ms [A:0, R:1]
19:14:04 INFO: Detected new work: a318
19:14:14 Temp: GPU0: 73C GPU1: 73C GPU2: 73C
19:14:14 GPU0: 51 Sol/s GPU1: 53 Sol/s GPU2: 53 Sol/s
19:14:14 Total speed: 157 Sol/s