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 ('120d2dc1c0fb6f44dc02660c2d0b7d23', -1, 1714011437, 1714011437, '12d8baa4', -2, 0, 0)

Line : 187
File : sessions.php