An uncaught Exception was encountered

Type: Error

Message: Call to a member function result() on boolean

Filename: /home/users/weblemon/public_html/graffiter.com/application/controllers/Sketch.php

Line Number: 172

Backtrace:

File: /home/users/weblemon/public_html/graffiter.com/application/controllers/Sketch.php
Line: 62
Function: navi_prev_next_new

File: /home/users/weblemon/public_html/graffiter.com/index.php
Line: 315
Function: require_once