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 ('ad6a04dba83226fa0ac303a63ea058f5', -1, 1730432745, 1730432745, '0310d9da', -1, 0, 0)

Line : 195
File : sessions.php