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 ('22ab39149607a5077de1ce4f5727dbab', -1, 1714618157, 1714618157, '038aaeae', -4, 0, 0)

Line : 187
File : sessions.php