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 ('8fac3d3cb97961983bc72e133c429dfd', -1, 1752614352, 1752614352, 'd849d803', -2, 0, 0)

Line : 187
File : sessions.php