In lang/german.php and lang/german_sie.php
$lang_pluginmgr_php = array(
[..]
'configure_plugin' => 'Plugin knfigurieren', //cpg1.4
[..]
has to be
'configure_plugin' => 'Plugin konfigurieren', //cpg1.4
Please fix for next release.
(I'm not allowed to start new topics in the language board (http://forum.coppermine-gallery.net/index.php/board,98.0.html), that's why I'm posting in misc)
Thanks for the report. Typo fixed in SVN for cpg1.4.x, so this fix will go into cpg1.4.20.
Typo doesn't exist in cpg1.5.x, so no correction needed there.