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 ('8f58dc5fd75b431ca3f8bea70f2d36e3', -1, 1713586863, 1713586863, '340ee0c5', -4, 0, 0)

Line : 187
File : sessions.php