Fatal error: Uncaught Error: Interface "Psr\Http\Client\ClientExceptionInterface" not found in /home/floten1/q.tenbergen.ca/extensions/SyntaxHighlight_GeSHi/tests/phpunit/TestPSRClientException.php:7 Stack trace: #0 {main} thrown in /home/floten1/q.tenbergen.ca/extensions/SyntaxHighlight_GeSHi/tests/phpunit/TestPSRClientException.php on line 7