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 ('00a7f32cc9d7cad6bd295cc38e375270', -1, 1730424462, 1730424462, '0395f209', -1, 0, 0)

Line : 195
File : sessions.php