SwagPayPal 10.1.0 completely breaks Shopware 6.7.1.2

[doitauto]

Shopware Version

6.7.1.2

PayPal plugin version

10.1.0

Actual behaviour

Hello SwagPayPal team,

we tried to use SwagPayPal 10.1.0 on Shopware 6.7.1.2 – but unfortunately the plugin completely destroys our installation:
• Fatal errors directly after activation:

Typed property Swag\PayPal\SwagPayPal::$activateDeactivate must not be accessed before initialization

•	API endpoints fail with

Controller "Swag\PayPal\Setting\SettingsController" … does not exist in the container

•	The message queue is flooded with invalid jobs (e.g. TransactionStatusSyncTask), which cannot be deserialized anymore.
•	Even after clearing caches, reinstalling, wiping vendor/swag/paypal and reloading via Composer, the plugin remains unusable.
•	Our production shop was literally down for weeks because of this update. The only workaround is to downgrade to 10.0.6, which runs stable.

👉 We urgently need:
1. A clear compatibility matrix: Which SwagPayPal versions are supported for Shopware 6.7.x?
2. Either an update of SwagPayPal (>= 10.1.x) that officially supports 6.7.x, or a statement that 6.7.x is not yet supported.
3. A migration path / cleanup script for shops that already updated and now have broken queues and container definitions.

This issue is critical – PayPal is essential for merchants, and such breaking changes without compatibility notes are a disaster.

Thanks for treating this as urgent.

Expected behaviour

•	SwagPayPal 10.1.0 should install, activate and run without errors on Shopware 6.7.1.2.
•	PayPal settings should be accessible in the administration without container/DI errors.
•	Scheduled tasks and the message queue should process PayPal jobs without failing.
•	The shop frontend and checkout should remain fully functional with PayPal as a payment method.

How to reproduce & Environment

1.	Install a fresh Shopware 6.7.1.2 instance.
2.	Require and install SwagPayPal 10.1.0 via Composer (composer require swag/paypal:10.1.0).
3.	Run php bin/console plugin:refresh && php bin/console plugin:install --activate SwagPayPal.
4.	Clear cache, recompile themes.
5.	Open the Shopware Administration → Settings → PayPal or try to run the queue worker.

Result: Fatal errors are thrown (Typed property … must not be accessed, missing controllers, invalid messenger messages).

[cyl3x]

@doitauto thanks for your bug report. Typed property Swag\PayPal\SwagPayPal::$activateDeactivate must not be accessed before initialization usually indicates that the container is already broken, as the required dependency injection was not successful. Can you check if a bin/console cache:clear before plugin installation/activation solves the issue?