第一次點入出現的錯誤訊息

問題是這樣的
plog先前運作正常
最近點入個別blog都會出現以下錯誤訊息：
程式碼:
Exception message: chmod() has been disabled for security reasons
Error code: 2
-- Backtrace --
/home/crescent/public_html/plog/class/file/file.class.php(308): chmod
/home/crescent/public_html/plog/class/template/templateservice.class.php(295): file.createdir
/home/crescent/public_html/plog/class/template/templateservice.class.php(90): templateservice._configuretemplatesettings
/home/crescent/public_html/plog/class/view/smartyview.class.php(78): templateservice.template
/home/crescent/public_html/plog/class/view/blogview.class.php(39): viewarticleview.smartyview
/home/crescent/public_html/plog/class/view/viewarticleview.class.php(24): viewarticleview.blogview
/home/crescent/public_html/plog/class/action/viewarticleaction.class.php(112): viewarticleview.viewarticleview
/home/crescent/public_html/plog/class/controller/controller.class.php(305): viewarticleaction.perform
/home/crescent/public_html/plog/index.php(44): blogcontroller.process
/home/crescent/public_html/plog/post(21): include_once

Exception message: chmod() has been disabled for security reasons
Error code: 2
-- Backtrace --
/home/crescent/public_html/plog/class/file/file.class.php(308): chmod
/home/crescent/public_html/plog/plugins/authimage/pluginauthimage.class.php(58): file.createdir
/home/crescent/public_html/plog/class/plugin/pluginmanager.class.php(267): pluginauthimage.register
/home/crescent/public_html/plog/class/view/blogview.class.php(205): pluginmanager.getplugins
/home/crescent/public_html/plog/class/view/viewarticleview.class.php(73): blogview.render
/home/crescent/public_html/plog/class/controller/controller.class.php(325): viewarticleview.render
/home/crescent/public_html/plog/index.php(44): blogcontroller.process
/home/crescent/public_html/plog/post(21): include_once

Exception message: chmod() has been disabled for security reasons
Error code: 2
-- Backtrace --
/home/crescent/public_html/plog/class/file/file.class.php(308): chmod
/home/crescent/public_html/plog/plugins/flickr/pluginflickr.class.php(71): file.createdir
/home/crescent/public_html/plog/class/plugin/pluginmanager.class.php(267): pluginflickr.register
/home/crescent/public_html/plog/class/view/blogview.class.php(205): pluginmanager.getplugins
/home/crescent/public_html/plog/class/view/viewarticleview.class.php(73): blogview.render
/home/crescent/public_html/plog/class/controller/controller.class.php(325): viewarticleview.render
/home/crescent/public_html/plog/index.php(44): blogcontroller.process
/home/crescent/public_html/plog/post(21): include_once

Exception message: Cannot modify header information - headers already sent by (output started at /home/crescent/public_html/plog/class/object/exception.class.php:37)
Error code: 2
-- Backtrace --
/home/crescent/public_html/plog/class/view/view.class.php(172): header
/home/crescent/public_html/plog/class/view/view.class.php(309): viewarticleview.sendcontenttype
/home/crescent/public_html/plog/class/view/smartyview.class.php(163): view.render
/home/crescent/public_html/plog/class/view/blogview.class.php(224): smartyview.render
/home/crescent/public_html/plog/class/view/viewarticleview.class.php(73): blogview.render
/home/crescent/public_html/plog/class/controller/controller.class.php(325): viewarticleview.render
/home/crescent/public_html/plog/index.php(44): blogcontroller.process
/home/crescent/public_html/plog/post(21): include_once

Exception message: chmod() has been disabled for security reasons
Error code: 2
-- Backtrace --
/home/crescent/public_html/plog/class/template/smarty/core/core.write_file.php(44): chmod
/home/crescent/public_html/plog/class/template/smarty/core/core.write_compiled_resource.php(30): smarty_core_write_file
/home/crescent/public_html/plog/class/template/smarty/Smarty.class.php(1450): smarty_core_write_compiled_resource
/home/crescent/public_html/plog/class/template/smarty/Smarty.class.php(1279): template._compile_resource
/home/crescent/public_html/plog/class/template/template.class.php(120): smarty.fetch
/home/crescent/public_html/plog/class/view/smartyview.class.php(190): template.fetch
/home/crescent/public_html/plog/class/view/blogview.class.php(224): smartyview.render
/home/crescent/public_html/plog/class/view/viewarticleview.class.php(73): blogview.render
/home/crescent/public_html/plog/class/controller/controller.class.php(325): viewarticleview.render
/home/crescent/public_html/plog/index.php(44): blogcontroller.process
/home/crescent/public_html/plog/post(21): include_once

Exception message: chmod() has been disabled for security reasons
Error code: 2
-- Backtrace --
/home/crescent/public_html/plog/class/template/smarty/core/core.write_file.php(44): chmod
/home/crescent/public_html/plog/class/template/smarty/core/core.write_compiled_resource.php(30): smarty_core_write_file
/home/crescent/public_html/plog/class/template/smarty/Smarty.class.php(1450): smarty_core_write_compiled_resource
/home/crescent/public_html/plog/class/template/smarty/Smarty.class.php(1922): template._compile_resource
/home/crescent/public_html/plog/tmp/79/%%740^%%74056136^postandcomments.template.php(4): template._smarty_include
/home/crescent/public_html/plog/class/template/smarty/Smarty.class.php(1281): include
/home/crescent/public_html/plog/class/template/template.class.php(120): smarty.fetch
/home/crescent/public_html/plog/class/view/smartyview.class.php(190): template.fetch
/home/crescent/public_html/plog/class/view/blogview.class.php(224): smartyview.render
/home/crescent/public_html/plog/class/view/viewarticleview.class.php(73): blogview.render
/home/crescent/public_html/plog/class/controller/controller.class.php(325): viewarticleview.render
/home/crescent/public_html/plog/index.php(44): blogcontroller.process
/home/crescent/public_html/plog/post(21): include_once
而且
通常錯誤訊息只會出現在第一次點入
只要更新過一次就會消失
雖然不至於影響功能
不過每次都出現很討厭
麻煩高手解疑
謝謝

安裝的主機資訊如下↓
Apache 版本：1.3.33 (Unix)
MySQL 版本：4.0.22-standard
PHP 版本：4.3.10