Update Fails

[langermi]

Since two days my Plesk 12.5.30#25 autoupdate crontask fails (Ubuntu 14.04.4 LTS‬)

I tried to manualy update using "apt-get upgrade" but i got an error:

You might want to run 'apt-get -f install' to correct these.
The following packages have unmet dependencies:
psa-phpfpm-configurator : Depends: libapache2-mod-proxy-psa (>= 2.4.7-ubuntu14.04.16021710) but 2.4.7-ubuntu14.04.15072015 is installed
E: Unmet dependencies. Try using -f.


Is it safe to delete "psa-phpfpm-configurator" or should i use "apt-get upgrade -f"?

Thanks!

Michael