the backend order save have an error

when i trying to save the order at the backend this error meesage appeare

Error An error has occurred while attempting to save order 20033.
The order has been changed in the meantime. To prevent overwriting these changes, saving the order was aborted. Please close the order and re-open it.

the shopware version  5.5.2

You should update to a newer shopware version, since the issues with timestamps (causing the error you described) is already fixed.