errors when upgrading Debian 7.5.3 to 7.5.4

[covici]

Hi. I am trying to upgrade a 7.5.3 to 7.5.4 using the Debian version of Plesk and I am getting the following errors -- here are the last few lines from the /tmp log file.

Trying to fix qmail aliases for mailman mail lists... listmng: Error: cannot turn list blym-list: is QMail configured properly?.
listmng: Error: cannot turn list blym-list: is QMail configured properly?.
listmng: Error: cannot turn list blym-list: is QMail configured properly?.
listmng: Error: cannot turn list blym-list: is QMail configured properly?.
done
Trying to update component 'tomcat' in Components table... ERROR 1062 (23000) at line 1: Duplicate entry 'tomcat' for key 1

ERROR while trying to update component 'tomcat' in Components table

Aborting...

Any assistance would be appreciated.