Subscriptions’ sub-orders are not created

Hello, I have problem with some subscriptions!

There are no updating Subscription Status, but the money comes in my account.

As you can see here:

2026-02-05T10:29:16+00:00 Info Received valid response from PayPal IPN
2026-02-05T10:29:16+00:00 Info PayPal IPN: Array
(
 
    [payment_date] => 02:28:56 Feb 05, 2026 PST
    [txn_type] => subscr_payment
    [subscr_id] => I-K7K3...
    [last_name] => R...
    [residence_country] => DE
 
    [payment_gross] => 
    [mc_currency] => EUR
    [business] => [email protected]
    [payment_type] => instant
    [protection_eligibility] => Eligible
    [verify_sign] => A...T2
    [payer_status] => verified
    [payer_email] => info@payer_email.de
    [txn_id] => 79...2W
    [receiver_email] => [email protected]
    [first_name] => Ca...
    [invoice] => SUBSCR-5504
    [payer_id] => FY...4WE
    [receiver_id] => S9K...WLE
    [payer_business_name] => TMB Carsten REck
    [payment_status] => Completed
    [payment_fee] => 
    [mc_fee] => 0.69
    [mc_gross] => 10.00
    [custom] => {"order_id":5504,"order_key":"wc_order_Qy9W...Xq"}
    [charset] => windows-1252
    [notify_version] => 3.9
    [ipn_track_id] => f36...66d
)
2026-02-05T10:29:16+00:00 Info YWSBS - Found order #5504
2026-02-05T10:29:16+00:00 Info YWSBS - Txn Type: subscr_payment
2026-02-05T10:29:16+00:00 Info YWSBS - Validate currency OK
2026-02-05T10:29:16+00:00 Info YWSBS - Receiver Email OK
2026-02-05T10:29:16+00:00 Info YSBS - Paypal IPN Request Start
2026-02-05T10:29:16+00:00 Info YSBS - Subscription Array
(
    [0] => 5505
)
2026-02-05T10:29:16+00:00 Info Found order #5504
2026-02-05T10:29:16+00:00 Info Payment status: completed
2026-02-05T10:29:16+00:00 Info Aborting, Order #5504 is already complete.

I see that the problem is that there is no new on-hold order to complete (the order that is created after the IPN PayPal payment) and it finds only the 1st one that is completed and doesn’t do nothing!

Why the new on-hold order (that is pending renew) not been created?

Which is the code that creates these new orders after the payments in order to write some code and create them?

Thanks,