well
i will tell u for helping any one have the same problem
I edit ".htaccess" file in my server
and add in it (upper or down )
this code
<IfModule mod_security.c>
# Turn off mod_security filtering. SMF is a big boy, it doesn't need its hands held.
SecFilterEngine Off
# The below probably isn't needed, but better safe than sorry.
SecFilterScanPOST Off
</IfModule>
this fix the problem