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 ('f1b8dedc0f8ee6501e622352a7431ba4', -1, 1713484169, 1713484169, '12e3e45f', -10, 0, 0)

Line : 187
File : sessions.php