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 ('18cf53744b42a0ec6a3ff354023b78a0', -1, 1737480313, 1737480313, '12bed9c5', -9, 0, 0)

Line : 187
File : sessions.php