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 ('514f4952dd2d1c75853d74da32c0ef4e', -1, 1748769693, 1748769693, 'd849d863', 42, 0, 0)

Line : 190
File : sessions.php