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 ('55cdb5a1c3e3139fbd29db02def5faac', -1, 1711705050, 1711705050, '36d255cd', -7, 0, 0)

Line : 187
File : sessions.php