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 ('3598efae96258f6702183ab9311777bf', -1, 1620957876, 1620957876, '03ec76e1', 1, 0, 0)

Line : 187
File : sessions.php