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 ('7584c1674fa19c3d0756b6d7ac694bf2', -1, 1713915051, 1713915051, '0d3a524f', -11, 0, 0)

Line : 187
File : sessions.php