IndexError: index 0 is out of bounds for axis 0 with size 0

[ZHANGHUAHAI]

Dear Xin
I have an error while running the code：python main.py
====== Phase >>> train <<< ======
2018-08-25 16:34:55.208481: I T:\src\github\tensorflow\tensorflow\core\platform\cpu_feature_guard.cc:141] Your CPU supports instructions that this TensorFlow binary was not compiled to use: AVX2
[*] Reading checkpoint...
[!] Load failed...
Traceback (most recent call last):
File "main.py", line 38, in
tf.app.run()
File "C:\Program Files\Anaconda3\lib\site-packages\tensorflow\python\platform\app.py", line 125, in run
_sys.exit(main(argv))
File "main.py", line 30, in main
model.train()
File "D:\miccai17-mmwhs-hybrid-master\ds_ft_hybrid_4ct\src\model.py", line 237, in train
batch_img, batch_label = get_batch_patches(img_clec, label_clec, self.inputI_size, self.batch_size, chn=1, flip_flag=True, rot_flag=True)
File "D:\miccai17-mmwhs-hybrid-master\ds_ft_hybrid_4ct\src\utils.py", line 57, in get_batch_patches
rand_img = img_clec[rand_idx[0]]
IndexError: index 0 is out of bounds for axis 0 with size 0
I hope that you can help me solve it.
Thanks
Zhang