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 ('b8874fe92a51f0e4d89b99608519f2ec', -1, 1713928015, 1713928015, '0387d5d6', 0, 0)

Line : 158
File : sessions.php