LoadError: Transform failed with error code 1: Failed to serialize document: Uncaught

[Burythelightwithin]

Hi, I tried to run VIVA. I changed my chromosome Name from NC_0000000 form to chr1, chr2 chr3 .... and so on, since the VIVA gave me error code.

Since I changed my chromosome name, I gave code as
viva -f vcffile.vcf -r chr3:5015550-5123645 -s pdf -o ~/vcffolder

But VIVA gave me another error code as
ERROR: LoadError: Transform failed with error code 1: Failed to serialize document: Uncaught
Stacktrace:
[1] error(s::String)
@base ./error.jl:35

other stacktrace below had no problem. But output PDF file was empty.

I hope to know what caused this problem. Thank you.