A PHP Error was encountered

Severity: Notice

Message: Trying to get property of non-object

Filename: controllers/Categories.php

Line Number: 22

Backtrace:

File: /var/www/prestashop/essembio-2017/application/modules/categories/controllers/Categories.php
Line: 22
Function: _error_handler

File: /var/www/prestashop/essembio-2017/index.php
Line: 333
Function: require_once

A PHP Error was encountered

Severity: Notice

Message: Undefined index: lft

Filename: models/Mdl_categories.php

Line Number: 609

Backtrace:

File: /var/www/prestashop/essembio-2017/application/modules/admin8134/models/Mdl_categories.php
Line: 609
Function: _error_handler

File: /var/www/prestashop/essembio-2017/application/modules/categories/controllers/Categories.php
Line: 23
Function: getNodeLevel

File: /var/www/prestashop/essembio-2017/index.php
Line: 333
Function: require_once

A PHP Error was encountered

Severity: Notice

Message: Undefined index: rgt

Filename: models/Mdl_categories.php

Line Number: 610

Backtrace:

File: /var/www/prestashop/essembio-2017/application/modules/admin8134/models/Mdl_categories.php
Line: 610
Function: _error_handler

File: /var/www/prestashop/essembio-2017/application/modules/categories/controllers/Categories.php
Line: 23
Function: getNodeLevel

File: /var/www/prestashop/essembio-2017/index.php
Line: 333
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Creating default object from empty value

Filename: controllers/Categories.php

Line Number: 24

Backtrace:

File: /var/www/prestashop/essembio-2017/application/modules/categories/controllers/Categories.php
Line: 24
Function: _error_handler

File: /var/www/prestashop/essembio-2017/index.php
Line: 333
Function: require_once

A PHP Error was encountered

Severity: Notice

Message: Undefined property: stdClass::$slug

Filename: controllers/Categories.php

Line Number: 26

Backtrace:

File: /var/www/prestashop/essembio-2017/application/modules/categories/controllers/Categories.php
Line: 26
Function: _error_handler

File: /var/www/prestashop/essembio-2017/index.php
Line: 333
Function: require_once

A PHP Error was encountered

Severity: Notice

Message: Undefined property: stdClass::$slug

Filename: controllers/Categories.php

Line Number: 27

Backtrace:

File: /var/www/prestashop/essembio-2017/application/modules/categories/controllers/Categories.php
Line: 27
Function: _error_handler

File: /var/www/prestashop/essembio-2017/index.php
Line: 333
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /var/www/prestashop/essembio-2017/vendor/codeigniter/framework/system/core/Exceptions.php:271)

Filename: helpers/url_helper.php

Line Number: 564

Backtrace:

File: /var/www/prestashop/essembio-2017/application/modules/categories/controllers/Categories.php
Line: 27
Function: redirect

File: /var/www/prestashop/essembio-2017/index.php
Line: 333
Function: require_once