A PHP Error was encountered

Severity: Notice

Message: Undefined offset: 1

Filename: Http/GraphRawResponse.php

Line Number: 108

Backtrace:

File: /home/bt2qddzecoy0/public_html/v2/application/third_party/php-graph-sdk-5.4/src/Facebook/Http/GraphRawResponse.php
Line: 108
Function: _error_handler

File: /home/bt2qddzecoy0/public_html/v2/application/third_party/php-graph-sdk-5.4/src/Facebook/Http/GraphRawResponse.php
Line: 130
Function: setHttpResponseCodeFromHeader

File: /home/bt2qddzecoy0/public_html/v2/application/third_party/php-graph-sdk-5.4/src/Facebook/Http/GraphRawResponse.php
Line: 64
Function: setHeadersFromString

File: /home/bt2qddzecoy0/public_html/v2/application/third_party/php-graph-sdk-5.4/src/Facebook/HttpClients/FacebookCurlHttpClient.php
Line: 81
Function: __construct

File: /home/bt2qddzecoy0/public_html/v2/application/third_party/php-graph-sdk-5.4/src/Facebook/FacebookClient.php
Line: 216
Function: send

File: /home/bt2qddzecoy0/public_html/v2/application/third_party/php-graph-sdk-5.4/src/Facebook/Facebook.php
Line: 469
Function: sendRequest

File: /home/bt2qddzecoy0/public_html/v2/application/third_party/php-graph-sdk-5.4/src/Facebook/Facebook.php
Line: 342
Function: sendRequest

File: /home/bt2qddzecoy0/public_html/v2/application/controllers/Home.php
Line: 4141
Function: get

File: /home/bt2qddzecoy0/public_html/v2/index.php
Line: 315
Function: require_once

Graph returned an error: Error validating access token: The session has been invalidated because the user changed their password or Facebook has changed the session for security reasons.