安装Agora for J1.5 论坛组件 2.5.2 (Pantheon) 出现错误

我在joomla1.5安装Agora for J1.5 论坛组件 2.5.2 (Pantheon) 多国语言版， 结果出现以下错误信息：
        * JInstaller::install: SQL Error. DB function failed with error number 2006
          MySQL server has gone away SQL=CREATE TABLE IF NOT EXISTS jos_agora_annonces ( `forum_id` INTEGER NOT NULL DEFAULT 0, `forum_annonce` TEXT NULL, `forum_annonce_visible` TINYINT(1) NOT NULL DEFAULT 0, PRIMARY KEY (`forum_id`) )Type=MyISAM;
          SQL =
          CREATE TABLE IF NOT EXISTS jos_agora_annonces (
          `forum_id` INTEGER