I just upgraded to the new version of kstat that was available before a couple of hours after that i started getting an error which is getting written in my err0r_log file after every few seconds.
WordPress database error Column 'ip' cannot be null for query INSERT /*! HIGH_PRIORITY */ INTO
wp_kstats_raw ( timestamp, ip, url, user_agent, referrer, spider, search_engine, search_terms, os, browser, feed, user ).......
Can you please check it? Thanks