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 ('89c3e6d519c04ce0aa2da1bfbf1655e6', -1, 1767365955, 1767365955, 'd849d817', -4, 0, 0)

Line : 187
File : sessions.php