Foro local,no puedo "crear nuevo foro",pero si "categorias".ERROR...

[ApoFISSloPE]

....

Couldn't insert row in forums table

DEBUG MODE

SQL Error : 1062 Duplicate entry '0' for key 2

INSERT INTO phpbb_forums (forum_id, forum_name, cat_id, forum_desc, forum_order, forum_status, prune_enable, auth_view, auth_read, auth_post, auth_reply, auth_edit, auth_delete, auth_sticky, auth_announce, auth_vote, auth_pollcreate) VALUES ('6', 'Pentium 3', 7, 'vvvvvvvv', 10, 0, 0, 0, 0, 1, 1, 1, 1, 3, 3, 1, 1)

Line : 399
File : admin_forums.php


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Hace unos dia me escribiron en la foro uno que estaba todo en ruso.
¿no me ha hackeado el foro?

Tengo mi web y foro en mi ordenador con un direccion web gratuita.


phpMyAdmin Database Manager Version 2.6.2-pl1
PHP Information Version 5.0.4

About AppServ Version 2.5.4a for Windows
AppServ is a merging open source software installer package for Windows includes :

# Apache Web Server Version 2.0.54
# PHP Script Language Version 5.0.4
# MySQL Database Version 4.1.12a
# phpMyAdmin Database Manager Version 2.6.2-pl1


Foro--->>PHPBB2

Ayuda por favor


Muchas gracias