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 ('fbee19158e8f516b6741eb7d678bf8b0', -1, 1714747062, 1714747062, '03812d5c', 21, 0)

Line : 158
File : sessions.php