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 ('416733c9c296cd9b69c6128c65173223', -1, 1579454767, 1579454767, '12ce0c4f', -4, 0, 0)

Line : 187
File : sessions.php