JanB
i fixed it by installing those two old packages i linked above.
on a side node i might need to say that i generated a complete list of "packagename-versionstring" from a test system and used it with the zypper install command as i was totally irritated at that point.
rpm -q -a --qf "%{Name}=%{Version}:%{Vendor}\n" ${1-} | sort | awk -F: '/grommunio/ {printf "%s ", $1}' which ended up in this:
zypper install --force grommunio-admin-api=1.17.32.021a23c grommunio-admin-common=44.9fd4fb3 grommunio-admin-web=4.0.0.21.0ad253e grommunio-antispam=3.12.1 grommunio-common=29.0 grommunio-cui=1.1.3.b0091e0 grommunio-dav=1.5.17.c1122c5 grommunio-dbconf=1.1.1.da20a46 grommunio-error-pages=1.0.10.bb2df37 grommunio-imapsync=2.290 grommunio-index=1.3.0.g2bd8a8c grommunio-release=2025.1.2 grommunio-setup=1.1.14.768d394 grommunio-sync=2.3.5.306a709 grommunio-web=3.15.48.g1e5aa58af gromox-debuginfo=3.1.28.061aefa gromox-debugsource=3.1.28.061aefa gromox=3.1.28.061aefa grub2-theme-grommunio=1 joe=4.6 libHX32=4.28 libHX43=5.2 libbfio1=20240414 libesedb1=20240420 libexmdbpp0=1.11.5.1d86314 libolecf1=20240427 libpff1=20231205 libtinyxml2-10=10.0.0 libwmime2=1.0.0 mapi-header-php=2.0.2.b915f62 nginx-module-brotli=1.0.0rc+git9 nginx-module-vts=0.2.4 patterns-grommunio=1 perl-Authen-NTLM=1.09 perl-Encode-IMAPUTF7=1.05 perl-JSON-WebToken=0.10 plymouth-theme-grommunio=1 python3-mattermostdriver=7.3.2 python3-openapi-core=0.13.7 python3-openapi-schema-validator=0.1.5 python3-pamela=1.0.0 python3-parse=1.15.0 python3-pyexmdb=1.11.5.1d86314 python3-rfc3339-validator=0.1.4 python311-mattermostdriver=7.3.2 python311-mysqlclient=1.4.6 python311-openapi-core=0.13.7 python311-openapi-schema-validator=0.1.5 python311-openapi-spec-validator=0.2.9 python311-parse=1.15.0 python311-pyexmdb=1.11.5.1d86314 python311-systemd=234 system-user-grommunio=10 system-user-gromox=9 systemd-coredump-grommunio=1 systemd-presets-branding-grommunio=2024.06 update-alternatives=1.22.18 /root/rpms/python3-openapi-core-0.13.7-lp156.8.1.noarch.rpm /root/rpms/python3-mattermostdriver-7.3.2-lp155.15.2.noarch.rpm
and after that the admin-api worked again
SVC=grommunio-admin-api.service; systemctl restart $SVC ; journalctl -S -1m -u $SVC