Fatal error: Uncaught Error: Call to undefined method Wallpage::all() in /var/www/publishwall_new/applications/application/controllers/wall/wallpage.php:1251 Stack trace: #0 /var/www/publishwall_new/system/core/CodeIgniter.php(359): Wallpage->category() #1 /var/www/publishwall_new/index.php(237): require_once('/var/www/publis...') #2 {main} thrown in /var/www/publishwall_new/applications/application/controllers/wall/wallpage.php on line 1251