3.13.0-108.155) is not available, but a newer one is (3.13.0-166.216). We redirected you there.
/usr/share/doc/libaiksaurusgtk-1.2-0c2a/changelog.Debian.gz is in libaiksaurusgtk-1.2-0c2a 1.2.1+dev-0.12-6.3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libaiksaurusgtk-1.2-0c2a/../libaiksaurus-1.2-0c2a/changelog.Debian.gz