Answer
We have completely revised Lebenslauf.com and relaunched it on 05.09.2023. Documents can no longer be saved in the current version.
The documents that you created on Lebenslauf.com before 05.09.2023 can still be found on Anschreiben.com under the "Meine Dokumente" button. If you are asked to log in after clicking the button, log in with your XING credentials. The button then shows all the documents you have created so far, and you can continue editing and downloading them.