[magick-users] Exception 415: UnableToReadFont

[duc.sequere.aut.de.via.decede at imagemagick.org]

> There is no problem with the permissions and there are no translation

Ok.  There is nothing in ImageMagick that tells it to stop working on
a certain date so it tells us the problem is that something changed in
your environment.  In the mean-time, try your command but add -debug all
to your command line and see if it complains about anything.