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 ('17279d5ab6e47c2ae9ac6def585f3f08', -1, 1757423005, 1757423005, 'd849d895', -2, 0, 0)

Line : 187
File : sessions.php