Add check for default encryption profile

Author: jekuaitk

modules/os2forms_encrypt/src/Commands/Os2FormsEncryptCommands.php

@@ -58,6 +58,11 @@ public function enabledEncrypt(): void {
 
     $defaultEncryptionProfile = $config->get('default_encryption_profile');
 
+    if (!$defaultEncryptionProfile) {
+      $this->output()->writeln('Default encryption profile is missing. Set one and try again.');
+      return;
+    }
+
     // Get the storage for Webform entity type.
     $webformStorage = $this->entityTypeManager->getStorage('webform');