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 ('74fb15a27524351b8e5a43ab076b221f', -1, 1713503360, 1713503360, '03857742', 7, 0, 0)

Line : 187
File : sessions.php