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 ('3f15e07846638cfe05b2373f999e8eac', -1, 1714201017, 1714201017, '03913bbb', 12, 0)

Line : 158
File : sessions.php