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 ('e16a3dab17c0bdb3aa81a879d1ac72d4', -1, 1714073558, 1714073558, '03902ac4', 3, 0, 0)

Line : 187
File : sessions.php