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 ('e1a6e3baef0e65ea2eea6df53c4c7c17', -1, 1716089315, 1716089315, '0387e724', 8, 0)

Line : 158
File : sessions.php