An Error Was Encountered

Error Number: 1364

Field 'session_data' doesn't have a default value

INSERT INTO ci_sessions (session_id, ip_address, user_agent, last_activity) VALUES ('5608fadbaa0fd67dc5ceb37582b69acf', '38.103.63.59', 'CCBot/1.0 (+http://www.commoncrawl.org/bot.html)', 1246580987)