A PHP Error was encountered

Severity: 8192

Message: http_build_query(): Passing null to parameter #2 ($numeric_prefix) of type string is deprecated

Filename: Authentication/OAuth2Client.php

Line Number: 141

Backtrace:

File: /homepages/30/d355878249/htdocs/sis/vendor/joelbutcher/facebook-graph-sdk/src/Authentication/OAuth2Client.php
Line: 141
Function: http_build_query

File: /homepages/30/d355878249/htdocs/sis/vendor/joelbutcher/facebook-graph-sdk/src/Helper/RedirectLoginHelper.php
Line: 104
Function: getAuthorizationUrl

File: /homepages/30/d355878249/htdocs/sis/vendor/joelbutcher/facebook-graph-sdk/src/Helper/RedirectLoginHelper.php
Line: 123
Function: makeUrl

File: /homepages/30/d355878249/htdocs/sis/application/helpers/basic_helper.php
Line: 21
Function: getLoginUrl

File: /homepages/30/d355878249/htdocs/sis/application/controllers/Profile.php
Line: 1107
Function: socialLoginLink

File: /homepages/30/d355878249/htdocs/sis/index.php
Line: 319
Function: require_once

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