Error with Deepspeech 0.5.1

I understand. I’m pasting the error log

I Restored variables from most recent checkpoint at /home/sayantan/Desktop/ai_learning/new_deepspeech/deepspeech-0.5.1-checkpoint/train-469905, step 469905
I STARTING Optimization
Epoch 0 |   Training | Elapsed Time: 0:35:44 | Steps: 2366 | Loss: 7.414255                                                                                                                                    
Epoch 0 |   Training | Elapsed Time: 0:36:07 | Steps: 2387 | Loss: 7.434547                                                                                                                                   
Epoch 0 |   Training | Elapsed Time: 1:00:03 | Steps: 3669 | Loss: 7.863337                                                                                                                                   
W0714 12:50:50.478254 140394913916736 deprecation.py:323] From /home/sayantan/anaconda3/envs/deepspeech_0_5_train/lib/python3.6/site-packages/tensorflow/python/training/saver.py:960: remove_checkpoint (from tensorflow.python.training.checkpoint_management) is deprecated and will be removed in a future version.
Instructions for updating:
Use standard file APIs to delete files with this prefix.
Epoch 0 |   Training | Elapsed Time: 1:01:16 | Steps: 3731 | Loss: 7.924674                                                                                                                                   
Epoch 0 |   Training | Elapsed Time: 2:58:50 | Steps: 9101 | Loss: 10.700255                                                                                                                                  
Epoch 0 |   Training | Elapsed Time: 3:01:42 | Steps: 9220 | Loss: 10.774141                                                                                                                                  
Epoch 0 |   Training | Elapsed Time: 3:29:46 | Steps: 10367 | Loss: 11.485737                                                                                                                                 
Traceback (most recent call last):
 File "/home/sayantan/anaconda3/envs/deepspeech_0_5_train/lib/python3.6/site-packages/tensorflow/python/client/session.py", line 1356, in _do_call
return fn(*args)
 File "/home/sayantan/anaconda3/envs/deepspeech_0_5_train/lib/python3.6/site-packages/tensorflow/python/client/session.py", line 1341, in _run_fn
options, feed_dict, fetch_list, target_list, run_metadata)
 File "/home/sayantan/anaconda3/envs/deepspeech_0_5_train/lib/python3.6/site-packages/tensorflow/python/client/session.py", line 1429, in _call_tf_sessionrun
run_metadata)
tensorflow.python.framework.errors_impl.InvalidArgumentError: 2 root error(s) found.
(0) Invalid argument: Header mismatch: Expected fmt  but found JUNK
 [[{{node DecodeWav}}]]
 [[tower_0/IteratorGetNext]]
 [[layer_2/bias/read/_41]]
(1) Invalid argument: Header mismatch: Expected fmt  but found JUNK
 [[{{node DecodeWav}}]]
 [[tower_0/IteratorGetNext]]
0 successful operations.
0 derived errors ignored.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
 File "DeepSpeech.py", line 836, in <module>
tf.app.run(main)
File "/home/sayantan/anaconda3/envs/deepspeech_0_5_train/lib/python3.6/site-packages/tensorflow/python/platform/app.py", line 40, in run
_run(main=main, argv=argv, flags_parser=_parse_flags_tolerate_undef)
File "/home/sayantan/anaconda3/envs/deepspeech_0_5_train/lib/python3.6/site-packages/absl/app.py", line 300, in run
_run_main(main, args)
File "/home/sayantan/anaconda3/envs/deepspeech_0_5_train/lib/python3.6/site-packages/absl/app.py", line 251, in _run_main
sys.exit(main(argv))
File "DeepSpeech.py", line 820, in main
train()
File "DeepSpeech.py", line 510, in train
train_loss, _ = run_set('train', epoch, train_init_op)
File "DeepSpeech.py", line 483, in run_set
feed_dict=feed_dict)
File "/home/sayantan/anaconda3/envs/deepspeech_0_5_train/lib/python3.6/site-packages/tensorflow/python/client/session.py", line 950, in run
run_metadata_ptr)
File "/home/sayantan/anaconda3/envs/deepspeech_0_5_train/lib/python3.6/site-packages/tensorflow/python/client/session.py", line 1173, in _run
feed_dict_tensor, options, run_metadata)
File "/home/sayantan/anaconda3/envs/deepspeech_0_5_train/lib/python3.6/site-packages/tensorflow/python/client/session.py", line 1350, in _do_run
run_metadata)
File "/home/sayantan/anaconda3/envs/deepspeech_0_5_train/lib/python3.6/site-packages/tensorflow/python/client/session.py", line 1370, in _do_call
raise type(e)(node_def, op, message)
tensorflow.python.framework.errors_impl.InvalidArgumentError: 2 root error(s) found.
(0) Invalid argument: Header mismatch: Expected fmt  but found JUNK
 [[{{node DecodeWav}}]]
 [[tower_0/IteratorGetNext]]
 [[layer_2/bias/read/_41]]
(1) Invalid argument: Header mismatch: Expected fmt  but found JUNK
 [[{{node DecodeWav}}]]
 [[tower_0/IteratorGetNext]]
0 successful operations.
0 derived errors ignored.

This is the complete log (the starting part is the epochs running followed by the errors). Thanks a lot again for your quick reply.