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 ('74674c33a0d2d5fd2a12b05a79ff3293', -1, 1713433601, 1713433601, '0391b789', -11, 0, 0)

Line : 187
File : sessions.php