phpBB : Erro Crítico

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 2

INSERT INTO f_activesessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('8270c36f0db982bfe1469db777fa2cfe', -1, 1752314776, 1752314776, 'd849d8ce', 9, 0, 0)

Line : 187
File : sessions.php