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 ('f1c824671a55972fbe1b99e93b1d03eb', -1, 1718536713, 1718536713, '12bfbd81', -9, 0, 0)

Line : 187
File : sessions.php