message_die() was called multiple times. This isn't supposed to happen. Was message_die() used in page_tail.php?<br />
<b>Warning</b>:  Unknown: write failed: No space left on device (28) in <b>Unknown</b> on line <b>0</b><br />
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<b>Warning</b>:  Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/var/lib/php5/sessions) in <b>Unknown</b> on line <b>0</b><br />