phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('12f1d771b605b329c87f7598a473d2c3', -1, 1713445766, 1713445766, '03812737', -10, 0, 0)

Line : 187
File : sessions.php