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 ('b8bd45e7cf0f9e2c7d1725bda8a0beeb', -1, 1737643350, 1737643350, '031765fc', 3, 0, 0)

Line : 187
File : sessions.php