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While Im trying to run the lesson 10 , Im facing issues,
AttributeError: ‘numpy.ndarray’ object has no attribute ‘x’ at this line ,
trn_dl = LanguageModelLoader(np.concatenate(trn_lm), bs, bptt)

And my environment is,

=== Software === 
python       : 3.6.6
fastai       : 1.0.38
fastprogress : 0.1.18
torch        : 1.0.0
torch cuda   : 9.0.176 / is **Not available** 

=== Hardware === 
No GPUs available 

=== Environment === 
platform     : Linux-4.4.0-1065-aws-x86_64-with-debian-9.5
distro       : Debian GNU/Linux 9 stretch
conda env    : Unknown
python       : /usr/local/bin/python
sys.path     : 
/usr/local/lib/python36.zip
/usr/local/lib/python3.6
/usr/local/lib/python3.6/lib-dynload
/usr/local/lib/python3.6/site-packages
/usr/src/app
/usr/local/lib/python3.6/site-packages/IPython/extensions
no supported gpus found on this system

Thanks in advance