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 ('fc4bed9af42233af8e6880d6bd743a58', -1, 1713765106, 1713765106, '2cc81bd7', -1, 0, 0)

Line : 187
File : sessions.php