Error in Squirrelmail

[Babah]

Hello DA fans

I've got this error when login into Squirrelmail :

Warning: strpos() [function.strpos]: Offset not contained in string in /var/www/html/squirrelmail-1.4.22/functions/imap_messages.php on line 551

but it gone after click "Check Mail" link

how to solve this problem, thank you

 

[scsi]

Warnings are nothing. Turn off error_display in php.ini and edit error_reporting

 

[Babah]

Thank you for your information, scsi