error during cache download

[NixBio]

SessionInfo:

snakemake --version
8.20.6
 python --version
Python 3.7.12
Distributor ID: Debian
Description:    Debian GNU/Linux 11 (bullseye)
Release:        11
Codename:       bullseye

call:
./modr cache --sif-cache /mypath/software/containers/snakemake/modr

output:

modr (0.6.1)
Image will be pulled from "docker://skchronicles/modr:v0.1.0".
Image will be pulled from "docker://skchronicles/dinopore:v0.1.0".
Image will be pulled from "docker://skchronicles/pycoqc:v0.1.0".
Image will be pulled from "docker://skchronicles/flair:v0.1.0".
Image will be pulled from "docker://skchronicles/sqanti3:v0.1.0".
/mypath/software/ngs/BioinfCore/modr/src/cache.sh: line 210: SLURM_JOB_ID: unbound variable
/mypath/software/ngs/BioinfCore/modr/src/cache.sh: line 210: SLURM_JOB_ID: unbound variable
WARNING: Failed to run 'set -euo pipefail; /mypath/software/ngs/BioinfCore/modr/src/cache.sh local  -s '/mypathsoftware/containers/snakemake/modr'  -i 'docker://skchronicles/modr:v0.1.0,docker://skchronicles/dinopore:v0.1.0,docker://skchronicles/pycoqc:v0.1.0,docker://skchronicles/flair:v0.1.0,docker://skchronicles/sqanti3:v0.1.0'  -t '/mypath/software/containers/snakemake/modr/myid/.singularity/' ' command!
        └── Command returned a non-zero exitcode of '1'.
Fatal: Failed to pull all containers. Please try again!