Deprecated: substr(): Passing null to parameter #1 ($string) of type string is deprecated in /srv/www/htdocs/straub-root/piwigo.straub.de/include/functions_user.inc.php on line 804 Birgits und Hans-Peters Fotoalbum Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in /srv/www/htdocs/straub-root/piwigo.straub.de/include/template.class.php on line 911