From Google translate:

Hello, I want to do the classification of tumors from a digital pathology image, I am using a CNN model already close that I got from the site: (https://www.frontiersin.org/articles/10.3389/fmolb 1. 2020.00183 / full)
I get the following error: ‘ReLU’ object has no attribute ‘threshold’
there seems to be an inconsistency in the pre-trained model, because one of the activations
tries to pass a threshold value to a “reread” type activation, when this activation function does not have a threshold parameter.
Thank you in advance for your reply

@Achrouf could you use an online translator for further posts, please? 
For the issue:
The nn.ReLU module doesn’t have a threshold method, so you might want to use e.g. torch.threshold.