Error in fetching the Refseq using Taxonomic ID

I have been trying to extract the reference sequences for the list of taxonomic IDs I have like:

Taxon ID
1438843
1421962
1324283
1422107

So, for 1438843, the reference sequence is NC_000962.3 and I need to download this particular reference sequence with respect to taxonomic ID 1438843.

When I try to fetch the RefSeq for the first taxonomic ID using the following Eutility command:

esearch -db genome -query “txid1438843 [Organism]” | elink -target nuccore | efilter -query “refseq”| efetch -format fasta

It shows an error like:

ERROR in filt input: callMLink: Query failed on MegaLink server

ERROR in fetch input: callMLink: Query failed on MegaLink server

Could any suggest me a way to fetch the refseq for the above mentioned taxonomic IDs?