snpsift annotate for annotating gnomad and dbsnp ids

Dear all,
after I annotated my vcfs with snpeff, I would know like to annotate further information as gnomad frequencies and dbsnp ids using snpsift. Unfortunatly trying to annotate gnomad_exome frequencies for one chromosme (chr17) leaves me with an error message.
I loaded the according vcf from gnomad on my galaxy docker via URL (https://storage.googleapis.com/gnomad-public/release/2.1.1/vcf/exomes/gnomad.exomes.r2.1.1.sites.17.vcf.bgz), changed the datatype into .vcf (using the pencil icon). However I get this error message when using snpsift annotate: “Unable to finish job”

Thanks for the help!
Rose

I tried it as well on use galaxy.org and was left with the following error message:
Picked up _JAVA_OPTIONS: -Djava.io.tmpdir=/galaxy-repl/main/jobdir/025/479/25479116/_job_tmp -Xmx7g -Xms256m
VcfFileIterator.parseVcfLine(132): Fatal error reading file ‘null’ (line: 1):
��BCX+�}}s�8��߹O�ڭڛ��i��%^͕"K�n-ٱ���mM�d���#�QJ�}�|�k���(Ң,;

@jennaj May I ask you for help in this regard?

Thanks a lot