please post text as text (in a code block) instead of screenshots
else - please post the output of `mount` and `ls -la /var/cache`, and `pmgversion -v` (as text in code blocks)
how was the PMG setup? (install from ISO, is it a container running on PVE, was it installed on top of a Debian GNU/Linux installation?)
was it installed on top of a Debian GNU/Linux installation
root@10-vm-pmg02:~# mount
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
udev on /dev type devtmpfs (rw,nosuid,relatime,size=4029728k,nr_inodes=1007432,mode=755,inode64)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /run type tmpfs (rw,nosuid,nodev,noexec,relatime,size=812332k,mode=755,inode64)
/dev/mapper/mhb--vm--pmg01--vg-root on / type ext4 (rw,relatime,errors=remount-ro)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev,inode64)
tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k,inode64)
cgroup2 on /sys/fs/cgroup type cgroup2 (rw,nosuid,nodev,noexec,relatime,nsdelegate,memory_recursiveprot)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
bpf on /sys/fs/bpf type bpf (rw,nosuid,nodev,noexec,relatime,mode=700)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=30,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=18985)
mqueue on /dev/mqueue type mqueue (rw,nosuid,nodev,noexec,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,nosuid,nodev,noexec,relatime)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,pagesize=2M)
tracefs on /sys/kernel/tracing type tracefs (rw,nosuid,nodev,noexec,relatime)
fusectl on /sys/fs/fuse/connections type fusectl (rw,nosuid,nodev,noexec,relatime)
configfs on /sys/kernel/config type configfs (rw,nosuid,nodev,noexec,relatime)
ramfs on /run/credentials/systemd-sysctl.service type ramfs (ro,nosuid,nodev,noexec,relatime,mode=700)
ramfs on /run/credentials/systemd-sysusers.service type ramfs (ro,nosuid,nodev,noexec,relatime,mode=700)
ramfs on /run/credentials/systemd-tmpfiles-setup-dev.service type ramfs (ro,nosuid,nodev,noexec,relatime,mode=700)
/dev/sda1 on /boot type ext2 (rw,relatime)
/dev/mapper/vgvar-lvvar on /var type ext4 (rw,relatime,errors=remount-ro)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,nosuid,nodev,noexec,relatime)
ramfs on /run/credentials/systemd-tmpfiles-setup.service type ramfs (ro,nosuid,nodev,noexec,relatime,mode=700)
tmpfs on /run/user/0 type tmpfs (rw,nosuid,nodev,relatime,size=812328k,nr_inodes=203082,mode=700,inode64)
root@10-vm-pmg02:~# ls -la /var/cache/
итого 52
drwxr-xr-x 12 root root 4096 окт 1 13:02 .
drwxr-xr-x 12 root root 4096 мар 12 2024 ..
drwxr-xr-x 2 root root 4096 мая 25 2023 adduser
drwxr-xr-x 3 root root 4096 окт 1 03:44 apt
drwxr-xr-x 3 root root 4096 мар 20 2024 debconf
drwxr-xr-x 2 root root 4096 мар 11 2024 dictionaries-common
drwxr-xr-x 2 root root 4096 мар 11 2024 fontconfig
drwx------ 2 root root 4096 мар 21 2024 ldconfig
drwxr-xr-x 34 man man 4096 окт 1 10:58 man
-rw-r--r-- 1 root root 21 окт 1 13:02 pmg-scores.cf
drwxr-xr-x 3 root root 4096 мар 11 2024 postgresql
drwx------ 2 root root 4096 мар 11 2024 private
drwxr-xr-x 2 root root 4096 ноя 3 2022 razor
root@10-vm-pmg02:~# pmgversion -v
proxmox-mailgateway: 8.1.0 (API: 8.1.2/c979cfd1d78a, running kernel: 6.5.13-1-pve)
pmg-api: 8.1.2
pmg-gui: 4.1.1
proxmox-kernel-helper: 8.1.0
proxmox-kernel-6.5.13-1-pve-signed: 6.5.13-1
proxmox-kernel-6.5: 6.5.13-1
clamav-daemon: 1.0.3+dfsg-1~deb12u1
ifupdown: residual config
ifupdown2: 3.2.0-1+pmx8
libarchive-perl: 3.6.2
libjs-extjs: 7.0.0-4
libjs-framework7: 4.4.7-2
libproxmox-acme-perl: 1.5.0
libproxmox-acme-plugins: 1.5.0
libpve-apiclient-perl: 3.3.0
libpve-common-perl: 8.1.0
libpve-http-server-perl: 5.0.5
libxdgmime-perl: 1.1.0
lvm2: 2.03.16-2
pmg-docs: 8.1.1