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 ('b7b5a3d48fe73349bf2cd243844ede0a', -1, 1737618857, 1737618857, '038a747c', 9, 0, 0)

Line : 187
File : sessions.php