It might be related, I cannot uninstall dolibarr:
# aptitude purge dolibarr
The following packages will be REMOVED:
dolibarr{p} libgmime2.6-cil{u} libproxy0{u}
0 packages upgraded, 0 newly installed, 3 to remove and 2 not upgraded.
Need to get 0 B of archives. After unpacking 35.9 MB will be freed.
Do you want to continue? [Y/n/?]
(Reading database ... 300021 files and directories currently installed.)
Removing dolibarr ...
You must invoke apache2-maintscript-helper with an unmodified environment
when sourcing it
dpkg: error processing dolibarr (--purge):
subprocess installed post-removal script returned error exit status 1
Errors were encountered while processing:
dolibarr
E: Sub-process /usr/bin/dpkg returned an error code (1)
A package failed to install. Trying to recover:
