phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 2

INSERT INTO forum_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('cbc54c3733e2c5fc1096156192614a3c', -1, 1717095588, 1717095588, '340e1128', 1, 0, 0)

Line : 187
File : sessions.php