Nextcloud Docker Document Server no file on Client

i have nextcloud with OO Document Server on Docker. I have installed OO Editor on Win10. I can add my nextcloud storage but if i want to open a .docx document, i got “file not found”. If i open the same file in browser online, there is no problem and i can open it.
What could the problem be?

Hello @Taste
Please let us know your versions of Nextcloud, Document server and Desktop editors.
If it’s possible, please reproduce the issue and make videofile.