Cant reproduce results, self.instance_path is empty. Please help me

[Kitty-sunray]

Hello!
I try to run train with the command
train.py --name name --mpdist --netG condconv --dist_url tcp://0.0.0.0:8000 --num_servers 1 --netD fpse --lambda_feat 20 --dataset_mode custom --dataroot=path --batchSize 1 --niter 100 --niter_decay 100 --use_vae --ngpus_per_node 1 --label_dir=path --image_dir=path --checkpoints_dir=path --no_vgg_loss

And gettin the error I could not trace back:
Use GPU: 0 for training
dataset [CustomDataset] of size 14544 was created
Network [CondConvGenerator] was created. Total number of parameters: 135.6 million. To see the architecture, do print(network).
Network [FPSEDiscriminator] was created. Total number of parameters: 5.2 million. To see the architecture, do print(network).
Network [ConvEncoder] was created. Total number of parameters: 10.5 million. To see the architecture, do print(network).
create web directory path...
Traceback (most recent call last):
File "train.py", line 97, in
main()
File "train.py", line 29, in main
mp.spawn(main_worker, nprocs=ngpus_per_node, args=(ngpus_per_node, idx_server, opt))
File "/opt/conda/lib/python3.7/site-packages/torch/multiprocessing/spawn.py", line 199, in spawn
return start_processes(fn, args, nprocs, join, daemon, start_method='spawn')
File "/opt/conda/lib/python3.7/site-packages/torch/multiprocessing/spawn.py", line 157, in start_processes
while not context.join():
File "/opt/conda/lib/python3.7/site-packages/torch/multiprocessing/spawn.py", line 118, in join
raise Exception(msg)
Exception:

-- Process 0 terminated with the following error:
Traceback (most recent call last):
File "/opt/conda/lib/python3.7/site-packages/torch/multiprocessing/spawn.py", line 19, in _wrap
fn(i, *args)
File "/content/CC-FPSE/train.py", line 58, in main_worker
for i, data_i in enumerate(dataloader, start=iter_counter.epoch_iter):
File "/opt/conda/lib/python3.7/site-packages/torch/utils/data/dataloader.py", line 435, in next
data = self._next_data()
File "/opt/conda/lib/python3.7/site-packages/torch/utils/data/dataloader.py", line 475, in _next_data
data = self._dataset_fetcher.fetch(index) # may raise StopIteration
File "/opt/conda/lib/python3.7/site-packages/torch/utils/data/_utils/fetch.py", line 44, in fetch
data = [self.dataset[idx] for idx in possibly_batched_index]
File "/opt/conda/lib/python3.7/site-packages/torch/utils/data/_utils/fetch.py", line 44, in
data = [self.dataset[idx] for idx in possibly_batched_index]
File "/content/CC-FPSE/data/pix2pix_dataset.py", line 79, in getitem
instance_path = self.instance_paths[index]

How to avid that?
Also, there is no vgg19.pth can be found anywhere. What file supposed to be used?