Notification error: OrderRepository::getOrderByOrderNumber() must be of the type string, null given...

[gychem]

Describe the bug
Recently we're getting more alerts of this error triggered in the Adyen shopware6 extension:

Error: Argument 1 passed to Adyen\Shopware\Service\Repository\OrderRepository::getOrderByOrderNumber() must be of the type string, null given, called in /var/www/rsca/shopware/custom/plugins/AdyenPaymentShopware6/src/ScheduledTask/ProcessNotificationsHandler.php on line 363 in /var/www/rsca/shopware/custom/plugins/AdyenPaymentShopware6/src/Service/Repository/OrderRepository.php on line 91

What is causing this error?

Versions
Shopware version: 6.4.20.1
Plugin version: 3.11.0

To Reproduce
N/A

Expected behavior
N/A

Screenshots
N/A

Desktop (please complete the following information):
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Smartphone (please complete the following information):
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Additional context
N/A

[adyen-integrations-support]

Hello @gychem ,

Thank you for reaching out to us. We noticed that you are using an outdated version of our plugin (3.11.0). Could you please update the plugin to the latest 3.16.3 and check if the issue still persists?

If the issue continues, we ask you to provide additional details about your experience, such as:

• When did the issue first occur (e.g., during checkout, installation, or configuration)?
• Are there specific actions or steps that consistently lead to the issue?
• Screenshots, videos, or logs (if available) to help us understand the problem better.
• Steps to reproduce.

Having these details will enable us to reproduce the issue on our end.

Best Regards.