[Plugin: WP SlimStat] Date Format Errors!

Hello, and thanks for your plugin, helps and supports.
every day, my php.ini file records lot of errors, same message:

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WordPress database error You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'IPs GROUP BY DATE_FORMAT(FROM_UNIXTIME(dt), '%m'), DATE_FORMAT(FROM_UNIXTIME(dt)' at line 1 for query SELECT DATE_FORMAT(FROM_UNIXTIME(dt), '%Y %m %d 00:00') datestamp, COUNT(t1.ip) data1, COUNT(DISTINCT(t1.ip)) data2Unique IPs GROUP BY DATE_FORMAT(FROM_UNIXTIME(dt), '%m'), DATE_FORMAT(FROM_UNIXTIME(dt), '%d') ORDER BY datestamp ASC made by wp_dashboard, do_meta_boxes, call_user_func, wp_slimstat_dashboard::slim_p1_03, wp_slimstat_db::extract_data_for_chart

my wordpress time format was September 10, 2012, the I changed it to 10/09/2012, but nothing changed and still I get many errors.

Thanks Again

http://wordpress.org/extend/plugins/wp-slimstat/