A PHP Error was encountered

Severity: Notice

Message: Undefined index: hub_challenge

Filename: controllers/Webhooks.php

Line Number: 25

Backtrace:

File: /var/www/html/application/controllers/Webhooks.php
Line: 25
Function: _error_handler

File: /var/www/html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Notice

Message: Undefined index: hub_verify_token

Filename: controllers/Webhooks.php

Line Number: 26

Backtrace:

File: /var/www/html/application/controllers/Webhooks.php
Line: 26
Function: _error_handler

File: /var/www/html/index.php
Line: 315
Function: require_once