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) VALUES ('385f5a4f294c6c89d0d10e5c2814afc6', -1, 1714616080, 1714616080, '12bf87e0', -4, 0)

Line : 158
File : sessions.php