I recently did a fresh install of a forum and am trying to add AdManagement again, but it's showing a lot of errors.
I'm running SMF 2.0.15 and AdManagment from feb 5th this year (current version on SMF site).


The links/downloads mod was installed later, so the errors are there with just SMF and Classifieds installed. As the site is already running with Classifieds, I do not want to uninstall to see if this is the issue.
Is the only solution to do a manual install, or is this problem more common and related to something else?
Thank you for your time.
BTW I checked file permissions for the files and /core dir and set those to 666 to be sure, but no results.