Maybe also check the points mentioned here: Librem 5 Can't import my VCF file using the the Contacts Importer script in particular whether the name of the .vcf file contains any characters that are not shell-safe.
Maybe also check the points mentioned here: Librem 5 Can't import my VCF file using the the Contacts Importer script in particular whether the name of the .vcf file contains any characters that are not shell-safe.