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 ('ca904ef5b666d4cdf36398c7f442fced', -1, 1560895994, 1560895994, '12d7a113', -9, 0, 0)

Line : 189
File : sessions.php