Post Server Migration Laravel Backups run but no data sent to DO Spaces

I moved to a new server with Hetzner and set up all with Ploi and set up cron schedule, Horizon daemon and what not. But 4-5 hrs ago several jobs should have run to backup projects and application but nothing got sent to Digital Ocean Spaces . Using Spatie Backup "spatie/laravel-backup": "^8.1",.

I checked the schedule / crontab and things do run:

php artisan schedule:list |grep backup
  0    1 * * *  php artisan backup:clean ........ Next Due: 19 hours from now
  0    2 * * *  php artisan backup:run .......... Next Due: 20 hours from now
  0    2 * * *  php artisan backup:projects ..... Next Due: 20 hours from now
  0    0 * * 7  php artisan backup-client:projects  Next Due: 18 hours from now
  0    1 * * *  php artisan clean:backup ........ Next Due: 19 hours from now
date
Sat Apr  8 05:04:43 CEST 2023

I checked cat ~/staging.site.com/current/storage/logs/laravel.log but no errors related to backups.

Data in .env as as before migration for storing at DO Spaces:

DO_KEY=key
DO_SECRET=secret_key
DO_REGION=ams3
DO_BUCKET=smt-client-projects
DO_ENDPOINT=https://ams3.digitaloceanspaces.com
DO_URL=https://some-thing-nice.ams3.cdn.digitaloceanspaces.com

DO_BACKUP_BUCKET=smtapp

I did not get notification though still set in backup.php

'notifications' => [

 'notifications' => [
\Spatie\Backup\Notifications\Notifications\BackupHasFailedNotification::class => ['mail'],
\Spatie\Backup\Notifications\Notifications\UnhealthyBackupWasFoundNotification::class => ['mail'],
\Spatie\Backup\Notifications\Notifications\CleanupHasFailedNotification::class => ['mail'],
\Spatie\Backup\Notifications\Notifications\BackupWasSuccessfulNotification::class => ['mail'],
\Spatie\Backup\Notifications\Notifications\HealthyBackupWasFoundNotification::class => ['mail'],
\Spatie\Backup\Notifications\Notifications\CleanupWasSuccessfulNotification::class => ['mail'],
    ],

but emails on initial project are sent with these same settings and port:

MAIL_DRIVER=smtp
MAIL_HOST=smtp.sendgrid.net
MAIL_PORT=587

and Hetzner only blocks on other ports

Outgoing traffic to ports 25 and 465 are blocked by default on all Cloud Servers PAGE_CONTENT.LIMITS.REQUEST_FORBIDDEN.WARNING

so it seems that email via Sendgrid works just fine. Even checked Sendgrid logs and welcome emails are being sent without issues.

Tried to run a notification via Tinker but got stuck on values needed to test a failure and I am also not sure if this would work via Tinker..

php artisan tinker
Psy Shell v0.11.12 (PHP 8.1.17 — cli) by Justin Hileman
> use Spatie\Backup\Notifications\Notifications\BackupHasFailedNotification;
> $user = App\Models\Auth\User::find(1);
= App\Models\Auth\User {#5070
    id: 1,
    role_id: 3,
    company_id: 1,
    user_group_id: null,
...
    email: "[email protected]",
    avatar: null,
    ....
    deleted_at: null,
    is_sent_welcome: 1,
    lang: null,
    first_name: null,
    last_name: null,
  }

> $exception = new \Exception('Backup has failed due to an error.');
= Exception {#5064
    #message: "Backup has failed due to an error.",
    #file: "/home/ploi/staging.site.com/releases/11/vendor/psy/psysh/src/ExecutionLoopClosure.php(53) : eval()'d code",
    #line: 1,
  }

> $user->notify(new BackupHasFailedNotification($exception));

   TypeError  Spatie\Backup\Notifications\Notifications\BackupHasFailedNotification::__construct(): Argument #1 ($event) must be of type Spatie\Backup\Events\BackupHasFailed, Exception given, called in /home/ploi/staging.sitecomeval()'d code on line 1.

So why do I not get backups at Digital Ocean Spaces and why no emails on failure nor success?