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 ('2cc60f2d5a6424fc8bc83846f7769ba2', -1, 1714397042, 1714397042, '12bfecae', 20, 0)

Line : 158
File : sessions.php