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 ('ed2364dbe2c7d359032037203d2c7a15', -1, 1711711969, 1711711969, '36e115e4', -4, 0, 0)

Line : 187
File : sessions.php