query error

[tim26]

when i try add guild war system, bans and some other geatures i also have error

Fatal error: Call to a member function query() on a non-object in E:\xampp\htdocs\official\wars.php on line 50

whos can help? what i must change or showing

 

[tim26]

i need fast help;/

 

[tim26]

help;/