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 ('6ae3f9421f10db65b2345c521e697674', -1, 1600763883, 1600763883, '03ed5e6d', -4, 0)

Line : 158
File : sessions.php