A PHP Error was encountered

Severity: Notice

Message: Trying to access array offset on value of type null

Filename: controllers/Productos.php

Line Number: 29

Backtrace:

File: /home/c1990546/public_html/conoflex_py/application/controllers/Productos.php
Line: 29
Function: _error_handler

File: /home/c1990546/public_html/conoflex_py/index.php
Line: 346
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /home/c1990546/public_html/conoflex_py/system/core/Exceptions.php:271)

Filename: core/Common.php

Line Number: 570

Backtrace:

File: /home/c1990546/public_html/conoflex_py/application/models/Productos_model.php
Line: 29
Function: query

File: /home/c1990546/public_html/conoflex_py/application/controllers/Productos.php
Line: 37
Function: get_categoria

File: /home/c1990546/public_html/conoflex_py/index.php
Line: 346
Function: require_once

Ha ocurrido un error con la base de datos

Error Number: 1064

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 3

SELECT * FROM categorias AS C WHERE C.categ_id =

Filename: models/Productos_model.php

Line Number: 29