An uncaught Exception was encountered

Type: Error

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

Filename: /var/www/html/defence/application/models/ArticleTa_model.php

Line Number: 761

Backtrace:

File: /var/www/html/defence/application/controllers/Gallery_Tamil.php
Line: 219
Function: count_video_songs

File: /var/www/html/defence/index.php
Line: 316
Function: require_once