Test on DSEC datset

[ShuangMa156]

How do I run the command to test model use the pretrained model on DSEC dataset with a GPU?
when I use command "python val.py model=raft-spline dataset=dsec dataset.path=/root/data1/BFLOW/bflow/dataset/desc hardware.gpus=0 +experiment/dsec/raft_spline=E_LU4_BD2_lowpyramid checkpoint=/root/data1/BFLOW/bflow/checkpoint/desc/E_LU4_BD2.ckpt" trying to test, an error has occurred.