Fatal error: Uncaught Error: Class "Tests\Validation\BaseValidationTestCase" not found in /var/www/html/20240806165554/vendor/merkeleon/php-cryptocurrency-address-validation/tests/Validation/ETCTest.php:8 Stack trace: #0 {main} thrown in /var/www/html/20240806165554/vendor/merkeleon/php-cryptocurrency-address-validation/tests/Validation/ETCTest.php on line 8