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 ('32755a223236ae0cc066b835bc357d50', -1, 1713740734, 1713740734, '2cd263d1', 0, 0, 0)

Line : 187
File : sessions.php