A PHP Error was encountered

Severity: Warning

Message: Attempt to read property "image_name" on null

Filename: models/Product_model.php

Line Number: 158

Backtrace:

File: /www/sellercenter/application/models/Product_model.php
Line: 158
Function: _error_handler

File: /www/sellercenter/application/controllers/Order.php
Line: 40
Function: get_product_for_billing

File: /www/sellercenter/index.php
Line: 315
Function: require_once

An uncaught Exception was encountered

Type: Error

Message: Attempt to assign property "image_name" on null

Filename: /www/sellercenter/application/models/Product_model.php

Line Number: 159

Backtrace:

File: /www/sellercenter/application/controllers/Order.php
Line: 40
Function: get_product_for_billing

File: /www/sellercenter/index.php
Line: 315
Function: require_once