phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('fde5eab092e39690f3ecc677b49f89e6', -1, 1569048308, 1569048308, '23afbf96', 14, 0, 0)

Line : 187
File : sessions.php