Fatal error: Uncaught Error: Interface "Zend_Loader_SplAutoloader" not found in D:\htdocs\SuiteCRM\tmp\package\upgrade\SuiteCRM-8.9.1-extracted\vendor\zf1\zend-loader\library\Zend\Loader\StandardAutoloader.php:35 Stack trace: #0 {main} thrown in D:\htdocs\SuiteCRM\tmp\package\upgrade\SuiteCRM-8.9.1-extracted\vendor\zf1\zend-loader\library\Zend\Loader\StandardAutoloader.php on line 35