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 ('494b21740e6b65e6ffd5fcdb0a84df75', -1, 1711711167, 1711711167, '2cdf05da', -1, 0, 0)

Line : 187
File : sessions.php