An uncaught Exception was encountered

Type: mysqli_sql_exception

Message: Unknown column 'teacher%20traing' in 'where clause'

Filename: /var/www/172-105-53-213.ip.linodeusercontent.com/public_html/system/database/drivers/mysqli/mysqli_driver.php

Line Number: 305

Backtrace:

File: /var/www/172-105-53-213.ip.linodeusercontent.com/public_html/application/models/Common_model.php
Line: 5169
Function: get

File: /var/www/172-105-53-213.ip.linodeusercontent.com/public_html/application/controllers/Study.php
Line: 7760
Function: selectData

File: /var/www/172-105-53-213.ip.linodeusercontent.com/public_html/index.php
Line: 315
Function: require_once