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 ('734e7b7a7b874b49e0424fc44e6c51e9', -1, 1736898694, 1736898694, '12610e5a', 6, 0, 0)

Line : 187
File : sessions.php