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 ('1b5e2f09d7f57461ae01c696b3303959', -1, 1749191534, 1749191534, 'd849d84a', 2, 0, 0)

Line : 190
File : sessions.php