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 ('471e50cc6bc0724007e65392bf393994', -1, 1716955170, 1716955170, '1276a716', -4, 0, 0)

Line : 187
File : sessions.php