Fatal error: Uncaught Error: Class "Zend_Oauth_Signature_SignatureAbstract" not found in D:\htdocs\SuiteCRM\vendor\zf1\zend-oauth\library\Zend\Oauth\Signature\Plaintext.php:31 Stack trace: #0 {main} thrown in D:\htdocs\SuiteCRM\vendor\zf1\zend-oauth\library\Zend\Oauth\Signature\Plaintext.php on line 31