WebUpdater -> folder files_encryption and appdata_oct8****

I’m using nextcloud (just updated from 18.03 to 18.04) on a shared hosting system. I’ve activated the default encryption module.

At every update to a new version the webupdater is stopping, because the folder “files_encryption” and “appdata_oct8****” are in nextcloud directory. I have to move these to another folder and restart the update. After this I move the 2 directories to the nextcloud directory again.

Is there a solution to avoid moving these two folders?

Thanks in advance