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 ('bffe91374faf46f5fd3c7a8d4f89a3b6', -1, 1713265318, 1713265318, '038668ad', -10, 0, 0)

Line : 187
File : sessions.php