phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('dffdcf2314f228d4652f60dbe074ac8b', -1, 1737659512, 1737659512, '03912d72', 73, 0, 0)

Line : 187
File : sessions.php