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 ('b0e8a609f18147b043ec09c4c09c35c4', -1, 1717005172, 1717005172, '12dcafbd', -4, 0, 0)

Line : 187
File : sessions.php