I\'m getting this error on an avatar upload on my site. I\'ve never gotten it before and nothing was changed recently for me to begin getting this error...
For me the problem was bad/missing config values for the Plesk server running the whole thing. I just followed the directions here: http://davidseah.com/blog/2007/04/separate-php-error-logs-for-multiple-domains-with-plesk/
You can configure PHP to have a separate error log file for each VirtualHost definition. The trick is knowing exactly how to set it up, because you can’t touch the configuration directly without breaking Plesk. Every domain name on your (dv) has its own directory in /var/www/vhosts. A typical directory has the following top level directories:
cgi-bin/
conf/
error_docs/
httpdocs/
httpsdocs/
...and so on
You’ll want to create a vhost.conf file in the domain directory’s conf/ folder with the following lines:
php_value error_log /path/to/error_log
php_flag display_errors off
php_value error_reporting 6143
php_flag log_errors on
Change the first value to match your actual installation (I used /tmp/phperrors.log). After you’re done editing the vhost.conf file, test the configuration from the console with:
apachectl configtest
…or if you don’t have apachectl (as Plesk 8.6 doesn’t seem to)…
/etc/init.d/httpd configtest
And finally tell Plesk that you’ve made this change.
/usr/local/psa/admin/bin/websrvmng -a