it gives me error and it does not happen from here

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|___/ https://ryo-currency.com |___/
This currency is a way for us to implement the ideas that we were unable to in
Monero. See https://github.com/fireice-uk/cryptonote-speedup-demo for details.
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[2018-10-26 13:24:05] : Mining coin: monero
[2018-10-26 13:24:05] : NVIDIA: try to load library 'xmrstak_cuda_backend_cuda10_0'
WARNING: NVIDIA cannot load backend library: libxmrstak_cuda_backend_cuda10_0.so: cannot open shared object file: No such file or directory
[2018-10-26 13:24:05] : NVIDIA: try to load library 'xmrstak_cuda_backend_cuda9_2'
WARNING: NVIDIA cannot load backend library: libxmrstak_cuda_backend_cuda9_2.so: cannot open shared object file: No such file or directory
[2018-10-26 13:24:05] : NVIDIA: try to load library 'xmrstak_cuda_backend'
WARNING: NVIDIA Unable to query number of CUDA devices!
[2018-10-26 13:24:05] : WARNING: backend NVIDIA disabled.
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