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 ('3ef4c670ae09037fe32098d208340775', -1, 1711712516, 1711712516, '36910c1c', -10, 0, 0)

Line : 187
File : sessions.php