WARNING: Skip the batch due to the loss is NaN, it may be caused by exceeding the precision or invalid labels

[Pengxin-Guo]

When I run
"python federatedscope/main.py --cfg federatedscope/llm/baseline/exp_yaml/dolly_lda/dolly_federate.yaml"

why there usually exists
"WARNING: Skip the batch due to the loss is NaN, it may be caused by exceeding the precision or invalid labels"?