Thema: Fehlermeldung ...configuration.php:1

Hallo,
ich erhalte folgende Fehlermeldung:

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at .../configuration.php:1) in /var/www/web1/html/hoerspiel_com/libraries/joomla/session/session.php on line 423

Warning: Cannot modify header information - headers already sent by (output started at /var/www/web1/html/hoerspiel_com/configuration.php:1) in .../libraries/joomla/session/session.php on line 426

Warning: Cannot modify header information - headers already sent by (output started at /var/www/web1/html/hoerspiel_com/configuration.php:1) in ...hoerspiel_com/templates/ja_purity/ja_templatetools.php on line 93

-------------
aber in der configuration.php
sehe ich keinen Fehler
Zeile 1-3

<?php
class JConfig {
/* Site Settings */

kann mir bitte jemand weiterhelfen

DANKE
Schöne Grüße
Jürgen

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