A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /mnt/stor1-wc2-dfw1/454513/880427/www.medilab.in/web/content/application/controllers/Cart.php:193)

Filename: core/Common.php

Line Number: 573

Backtrace:

An uncaught Exception was encountered

Type: Google_Service_Exception

Message: Error calling GET https://www.googleapis.com/oauth2/v2/userinfo: (401) Request is missing required authentication credential. Expected OAuth 2 access token, login cookie or other valid authentication credential. See https://developers.google.com/identity/sign-in/web/devconsole-project.

Filename: /mnt/stor1-wc2-dfw1/454513/880427/www.medilab.in/web/content/application/third_party/Google/Http/REST.php

Line Number: 110

Backtrace:

File: /mnt/stor1-wc2-dfw1/454513/880427/www.medilab.in/web/content/application/third_party/Google/Http/REST.php
Line: 62
Function: decodeHttpResponse

File: /mnt/stor1-wc2-dfw1/454513/880427/www.medilab.in/web/content/application/third_party/Google/Task/Runner.php
Line: 174
Function: doExecute

File: /mnt/stor1-wc2-dfw1/454513/880427/www.medilab.in/web/content/application/third_party/Google/Http/REST.php
Line: 46
Function: run

File: /mnt/stor1-wc2-dfw1/454513/880427/www.medilab.in/web/content/application/third_party/Google/Client.php
Line: 593
Function: execute

File: /mnt/stor1-wc2-dfw1/454513/880427/www.medilab.in/web/content/application/third_party/Google/Service/Resource.php
Line: 237
Function: execute

File: /mnt/stor1-wc2-dfw1/454513/880427/www.medilab.in/web/content/application/third_party/Google/Service/Oauth2.php
Line: 175
Function: call

File: /mnt/stor1-wc2-dfw1/454513/880427/www.medilab.in/web/content/application/controllers/Cart.php
Line: 199
Function: get

File: /mnt/stor1-wc2-dfw1/454513/880427/www.medilab.in/web/content/index.php
Line: 292
Function: require_once