Fatal error: Uncaught Error: Class "Cviebrock\EloquentSluggable\Tests\TestCase" not found in /home/mainwebsite/public_html/vendor/cviebrock/eloquent-sluggable/tests/RelationTests.php:12 Stack trace: #0 {main} thrown in /home/mainwebsite/public_html/vendor/cviebrock/eloquent-sluggable/tests/RelationTests.php on line 12