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 ('c5293d4eb46a289452b4d0b2fdfc38c8', -1, 1713289640, 1713289640, '12ddbb79', -1, 0, 0)

Line : 187
File : sessions.php