Err:100 http://security.debian.org/debian-security buster/updates/main amd64 libopenexr23 amd64 2.2.1-4.1+deb10u1 Could not resolve 'security.debian.org' Fetched 40.3 MB in 10s (4027 kB/s) E: Failed to fetch http://security.debian.org/debian-security/pool/updates/main/g/ghostscript/libgs9-common_9.27~dfsg-2+deb10u4_all.deb Could not resolve 'security.debian.org' E: Failed to fetch http://security.debian.org/debian-security/pool/updates/main/g/ghostscript/libgs9_9.27~dfsg-2+deb10u4_amd64.deb Could not resolve 'security.debian.org' E: Failed to fetch http://security.debian.org/debian-security/pool/updates/main/g/ghostscript/ghostscript_9.27~dfsg-2+deb10u4_amd64.deb Could not resolve 'security.debian.org' E: Failed to fetch http://security.debian.org/debian-security/pool/updates/main/o/openexr/libopenexr23_2.2.1-4.1+deb10u1_amd64.deb Could not resolve 'security.debian.org' E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing? ERROR: Job failed: exit code 1