TASK ERROR: mkdir /mnt/pve/Backup_Daten/template: Structure needs cleaning at /usr/share/perl5/PVE/Storage/Plugin.pm line 1398

First of all, hello to all users of this forum!

I'm new here and a Linux layman.
I have installed Proxmox on a thin client following the instructions in a Youtube video.
(2 physical data carriers: 1x NVME SSD for Proxmox and the containers and 1x HDD for backups and data).
Two LXCs are set up on it. ioBroker is installed in one of them. An automatic backup of all containers is also set up.
Additional info: (As I discovered today, I apparently accidentally restored the ioBroker container to...

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