Issue with extracting ERA5 data

Hi,

I am extracting ERA5 data as boundary condition for WRF using era5grib. I encountered an issue when trying to extract data of October 2023. I received error like this:

extracting data for September 2023 worked fine. I also tried to extract November but got the same error as the October attempt.

I am wondering if anyone has any suggestion on how to resolve this.
Thanks.