Issue #3347429: Saving Encryption profile settings the first time results in fatal

src/Form/Settings.php

@@ -208,9 +208,9 @@ class Settings extends ConfigFormBase {
       ->set('encryption_profile', $form_state->getValue('encryption_profile'))
       ->save();
 
-    // By the time we get here, all settings are stored, with the old profil.
+    // By the time we get here, all settings are stored, with the old profile.
     // If the profile has changed, we now have to re-encrypt all the values.
-    if ($old_profile_id !== $new_profile_id) {
+    if (!empty($old_profile_id) && $old_profile_id !== $new_profile_id) {
       $this->encryptionUpdate->update($old_profile_id, $new_profile_id);
     }