Some modules are gone from our Plesk-server, and dosnt work. This must be fixed.
When we try to upgrade or install some of the modules above manully, we got error.
Errors were encountered while processing:
E: Sub-process /usr/bin/dpkg returned an error code (1)
A person who has experience and expertise will fix this quickly.
Otherwise it may be general bugfix on this machine. However, a maximum of one extra hour. High experience is required, since it are many clients on the machine.