SBOM Upload EOF Error

Running this pipeline, the SBOM Upload job fails with the following error:

Running DevGuard Dependency Risk Identification...
$ devguard-scanner sbom sbom.json --origin="DEFAULT" --assetName="@opencode/projects/xleitstelle/assets/xmas-plugin" --apiUrl="https://api.devguard.opencode.de" --token="$DEVGUARD_TOKEN" --defaultRef="$CI_DEFAULT_BRANCH" --ref="$CI_COMMIT_REF_NAME" --isTag="$(if [ "$CI_COMMIT_TAG" != "" ]; then echo "true"; else echo "false"; fi)" --artifactName="source" --webUI=https://devguard.opencode.de --failOnRisk=critical --failOnCVSS=critical --ignoreExternalReferences=false
Error: could not parse response: EOF