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 ('0be4941d2f21205fcc7ad11c0be6a868', -1, 1750684580, 1750684580, '12610e55', -4, 0, 0)

Line : 187
File : sessions.php