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 ('41da872fda8934f2c4d3dfc13874b0a3', -1, 1713975036, 1713975036, '127783b2', -4, 0, 0)

Line : 187
File : sessions.php