/usr/lib/x86_64-linux-gnu/libgettextpo.so.0 is in libgettextpo0 0.18.1.1-5ubuntu3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libgettextpo.so.0.5.1
/usr/lib/x86_64-linux-gnu/libgettextpo.so.0.5.1