Value error : setting an array element with a sequence

In my environment, the code works without the error. It will be helpful to let me know the command you used. Thank you!
Utilised the main.py for training the dataset
python main.py --train_GT_path ./GT_path --train_LR_path ./LR_path --test_GT_path ./test_GT_path --test_LR_path ./test_LR_path --test_with_train True --scale 2 --log_freq 1000
Are you using multi-gpu? The code is assumed to run in single gpu environment
If you use multi-gpu environment, use this command CUDA_VISIBLE_DEVICES=0 python main.py ....
No i tried it on single GPU environment. I am still stuck with the same issue
have used the following command CUDA_VISIBLE_DEVICES=0 python main.py --train_GT_path ../Dat_Noh/train/train_h/ --train_LR_path ../Dat_Noh/train/train_l --scale 2 --log_freq 1000

I am using tensorflow 1.13 and python 3.6.9 numpy 1.15 scikit-image 0.15.0