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 ('44d46d078299c80e6f0cc9be3ea0c5e1', -1, 1713568410, 1713568410, '0313382d', -10, 0, 0)

Line : 187
File : sessions.php