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 ('1e95d4a108b6d1f779e90bd3d0ae5898', -1, 1730415988, 1730415988, '03946957', -1280, 0, 0)

Line : 195
File : sessions.php