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 ('bb4f9cd7737de99bf3d4dbd367e24a98', -1, 1711654281, 1711654281, '22e62367', -4, 0, 0)

Line : 187
File : sessions.php