phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('2a7909783bb5cd3811a21c5b9e00bfb2', -1, 1715217994, 1715217994, '038dc7f3', -9, 0, 0)

Line : 189
File : sessions.php