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 ('a668fee29bc8dfd959444f2a719e98ee', -1, 1748968538, 1748968538, '0394bb7e', 5, 0, 0)

Line : 190
File : sessions.php