پیام خطا پس از نصب

[seyed_27]

بسمه تعالی
با سلام خدمت دوستان جوملا 2.5 رو دانلود و نصب کردم ولی پیامهای خطای ذیل رو میده:
Strict Standards: Declaration of JCacheControllerPage::store() should be compatible with that of JCacheController::store() in C:\xampp\htdocs\joomla\libraries\joomla\cache\cont roller\page.php on line 200

Strict Standards: Only variables should be assigned by reference in C:\xampp\htdocs\joomla\templates\yougrids\yjsgcore \yjsg_core.php on line 26

Strict Standards: Only variables should be assigned by reference in C:\xampp\htdocs\joomla\templates\yougrids\yjsgcore \yjsg_stylesw.php on line 16

Strict Standards: Only variables should be assigned by reference in C:\xampp\htdocs\joomla\templates\yougrids\yjsgcore \yjsg_core.php on line 241
Strict Standards: Only variables should be assigned by reference in C:\xampp\htdocs\joomla\templates\yougrids\html\mod _menu\default.php on line 17

• Strict Standards: Only variables should be assigned by reference in C:\xampp\htdocs\joomla\templates\yougrids\html\mod _menu\yjsg_modhelper.php on line 33
  
  Strict Standards: Only variables should be assigned by reference in C:\xampp\htdocs\joomla\templates\yougrids\html\mod _menu\yjsg_modhelper.php on line 33
  
• 
  Strict Standards: Only variables should be assigned by reference in C:\xampp\htdocs\joomla\templates\yougrids\html\mod _menu\yjsg_modhelper.php on line 33
  Strict Standards: Only variables should be assigned by reference in C:\xampp\htdocs\joomla\templates\yougrids\html\mod _menu\yjsg_modhelper.php on line 33
  
  Strict Standards: Only variables should be assigned by reference in C:\xampp\htdocs\joomla\templates\yougrids\html\mod _menu\yjsg_modhelper.php on line 33
  

این کامپننت yougrids رو هم از سایتش دانلود کردم و نصب و انتشار دادم ولی مشکل حل نشد