adding

app/Commands/LetsEncryptRemoveCommand.php

@@ -55,7 +55,7 @@ class LetsEncryptRemoveCommand extends Command
                 if (!file_exists($directory)) {
                     $errors++;
                 } else {
-                    rmdir($directory);
+                    exec('rm -rf '.$directory.' 2&>1', $output);
                 }
             }