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 ('66f5f6ddb6656a7360f3fd7775b47e75', -1, 1714609136, 1714609136, '038a8a90', -11, 0, 0)

Line : 187
File : sessions.php