After upgrading from stretch to buster i get this error message. Can anybody help me, whats wrong with APT?
Code
CRON-APT RUN [/etc/cron-apt/config]: Thu Dec 12 07:35:10 CET 2019
CRON-APT SLEEP: 2601, Thu Dec 12 08:18:31 CET 2019
CRON-APT ACTION: 0-update
CRON-APT LINE: /usr/bin/apt-get -o Acquire::http::Dl-Limit=25 update -o quiet=2
E: Failed to fetch file:/var/cache/openmediavault/archives/Packages.gz Method gave a blank filename
E: Failed to fetch file:/var/cache/openmediavault/archives/Contents-all.gz File not found - /var/cache/openmediavault/archives/Contents-all.gz (2: No such file or directory)
E: Failed to fetch file:/var/cache/openmediavault/archives/Contents-armhf.gz File not found - /var/cache/openmediavault/archives/Contents-armhf.gz (2: No such file or directory)
E: Some index files failed to download. They have been ignored, or old ones used instead.