SDDM install

Hello all, I had a wonderfully working CRUX with plasma 5, but after the last sysup SDDM doesn't work any more and I find myself in a cli. I tried with slim: it works just to login screen but refuses every login. Reinstalling SDDM succeedes, but when I try to configure with "sddm --example-config > /etc/sddm.conf" I get a refuse: "error while loading shared libraries: libicui18n.so.58: cannot open shared object file: No such file or directory". My system now uses icu-61.0. What to do? Many thanks for an help.