In the language file user.php for german there is a wrong translation.
English:
define('_PSHASREADACCESS', 'View-access to album');
define('_PSHASWRITEACCESS', 'Edit-access to album');
German:
define('_PSHASREADACCESS', 'Zugriffsbeschr?nkungen zu diesem Album');
define('_PSHASWRITEACCESS', '?nderungsbeschr?nkungen zu diesem Album');
Corrected german:
define('_PSHASREADACCESS', 'Lesezugriff zu diesem Album');
define('_PSHASWRITEACCESS', '?nderungzugriff zu diesem Album');
'Zugriffsbeschr?nkungen' translated means not view-access but the opposite and the same problem is with '?nderungsbeschr?nkungen'. That means not edit-access but the opposite.