TypeError: not all arguments converted during string formatting

[FengJin2023]

Hello, I was trying to run the demo code, but I kept facing below error.
It seems that the out_channel(feature_num) has some problem.
Do you the reason of it.

/home python demo_test.py --config ./demo_config/demo.yaml

Traceback (most recent call last):
File "demo_test.py", line 206, in
main()
File "demo_test.py", line 177, in main
model = my_model(en_feature_num=args.EN_FEATURE_NUM,
File "/home/imglab3/feng/Research/UHDM/model/nets.py", line 21, in init
self.encoder = Encoder(feature_num=en_feature_num, inter_num=en_inter_num, sam_number=sam_number)
File "/home/imglab3/feng/Research/UHDM/model/nets.py", line 73, in init
nn.Conv2d(12, feature_num, kernel_size=5, stride=1, padding=2, bias=True),
File "/home/michael/feng/anaconda3/envs/esdnet/lib/python3.8/site-packages/torch/nn/modules/conv.py", line 433, in init
super(Conv2d, self).init(
File "/home/michael/feng/anaconda3/envs/esdnet/lib/python3.8/site-packages/torch/nn/modules/conv.py", line 85, in init
if out_channels % groups != 0:
TypeError: not all arguments converted during string formatting