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 ('7bbe347d7199b7fe6f1121d6f7d4e23a', -1, 1715080301, 1715080301, '12dc89a4', 2, 0, 0)

Line : 189
File : sessions.php