squirrelmail spam buttons error 13 problem

[hamza]

my box is rhel 3 + plesk 7.5 reloaded i press to spam button i gve error plesase help me this subject

note :i try to shell this command no error.
#/usr/bin/sa-learn --spam < /home/httpd/vhosts/test.net/httpdocs/webmail/sqm/attachments/sb_tmp_5_1162127480

Learned from 1 message(s) (1 message(s) examined).
********************************************************************************
COMMAND USED TO REPORT: /usr/bin/sa-learn --spam < /home/httpd/vhosts/test.net/httpdocs/webmail/sqm/attachments/sb_tmp_5_1162127480

RESULTS FROM REPORT: (13)
Array ( [0] => Learned from 0 message(s) (1 message(s) examined). )