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 ('0425e78eac89a3bb7662d9d39dbaa30b', -1, 1714079649, 1714079649, '0311bada', 2, 0, 0)

Line : 187
File : sessions.php