Full system disk + initramfs + no /var/log files + no web interface

Hello there,

Im currently having issues with my OMV4 installation. The installation is on a SD Card 16GB and the system disk is full:

Aside from this, the web interface is not working as well:

After reading in the forum ive tried deleting unnecessary files, however seems i can't find any. Result is empty of

find /var/log -type f -size +10M -exec ls -lah {} ";"

Here is the current usage on the disk:

Other things Ive tried:

root@SNB:/# apt-get autoremove
Reading package lists... Error!
E: Write error - write (28: No space left on device)
E: IO Error saving source cache
E: The package lists or status file could not be parsed or opened.

omv-aptclean:

Any autoclean and autoremove is unsuccessful. Can't figure out what else i can try.