Fatal error: Uncaught Error: Class 'cebe\gravatar\Gravatar' not found in /home/wittyly/public_html/live/hr-witty/vendor/dmstr/yii2-adminlte-asset/example-views/testing/app/layouts/_sidebar.php:8 Stack trace: #0 {main} thrown in /home/wittyly/public_html/live/hr-witty/vendor/dmstr/yii2-adminlte-asset/example-views/testing/app/layouts/_sidebar.php on line 8