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 ('f024630492f98c7492665939861af029', -1, 1767753945, 1767753945, 'd849d82b', -4, 0, 0)

Line : 187
File : sessions.php