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) VALUES ('a012e858e32bb9332bd36b732caf66bc', -1, 1611373191, 1611373191, '03eff237', -4, 0)

Line : 158
File : sessions.php