Code Issue (Please help )

[ShibaPrasad]

Traceback (most recent call last):
File "/home/shiba/Desktop/EEG-signal-classification-master/train.py", line 50, in
train()
File "/home/shiba/Desktop/EEG-signal-classification-master/train.py", line 42, in train
pipe.fit(train, y_train)
File "/home/shiba/anaconda2/lib/python2.7/site-packages/sklearn/pipeline.py", line 164, in fit
Xt, fit_params = self._pre_transform(X, y, **fit_params)
File "/home/shiba/anaconda2/lib/python2.7/site-packages/sklearn/pipeline.py", line 145, in _pre_transform
Xt = transform.fit_transform(Xt, y, **fit_params_steps[name])
File "/home/shiba/anaconda2/lib/python2.7/site-packages/sklearn/base.py", line 458, in fit_transform
return self.fit(X, y, **fit_params).transform(X)
File "/home/shiba/Desktop/EEG-signal-classification-master/train.py", line 21, in fit
self.W = eegtools.spatfilt.csp(class_covs[0], class_covs[1], 6)
IndexError: list index out of range