phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('d4b6ba8fce4b73eae12c7c9f4eded600', -1, 1715296757, 1715296757, '1276e269', 3, 0, 0)

Line : 189
File : sessions.php