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 ('be5f5c5de6e1a0460b869e52e3366ce8', -1, 1747902645, 1747902645, '12df661e', 2, 0, 0)

Line : 190
File : sessions.php