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 ('139bd8e2c779a07134d38386e7a422bf', -1, 1747415735, 1747415735, '12dde48f', 2, 0, 0)

Line : 190
File : sessions.php