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) VALUES ('049b5c5a6c2916364a92aaaeb26c60f1', -1, 1714349108, 1714349108, '340f3f91', 12, 0)

Line : 158
File : sessions.php