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 ('0018c040ec74d5fc017fb409c1f6a720', -1, 1711706312, 1711706312, '2cdf46a7', -4, 0, 0)

Line : 187
File : sessions.php