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 ('3d272a8b3d10615686f620e7cf87df65', -1, 1730421511, 1730421511, '0389b1b3', -1280, 0, 0)

Line : 195
File : sessions.php