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 ('b60e2eb4ebea2804d47dd3c6bc0ef9e6', -1, 1713449839, 1713449839, '038bee4c', -2, 0, 0)

Line : 187
File : sessions.php