Fatal error: Uncaught Error: Class "Spatie\Backtrace\Tests\TestCase" not found in /home/trairtil/public_html/vendor/spatie/backtrace/tests/CodeSnippets/LaravelSerializableClosureSnippetProviderTest.php:8 Stack trace: #0 {main} thrown in /home/trairtil/public_html/vendor/spatie/backtrace/tests/CodeSnippets/LaravelSerializableClosureSnippetProviderTest.php on line 8