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 ('1a20970bf6b0c5f0e021e8d73c1b4d6d', -1, 1717440811, 1717440811, '0313f439', -4, 0, 0)

Line : 187
File : sessions.php