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 ('7196acbc7856e1b0aa71327310ac0745', -1, 1747419078, 1747419078, '0314ce1b', -2, 0, 0)

Line : 189
File : sessions.php