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 ('cd4e08d17d7aa0132d9982924f76ec18', -1, 1614938863, 1614938863, '03eeba2b', 1, 0, 0)

Line : 187
File : sessions.php