It sounds like getResources may have been out of date prior to the installation of Articles, which then installed a newer version which somehow got corrupted. Removing and reinstalling getResources likely fixed it rather than Articles being gorked. You could try installing Articles again, but make sure that getResources and any other packages are up to date first.
The other issues are strange, and should be explored prior to doing anything really. Fix that, because that's not how MODX should behave. Updating wouldn't be a bad idea, but I think try reinstalling your current version first, see if the problems go away and then for sure update to 2.2.14 as all versions prior to 2.2.13 are not secure.
What exactly is the corruption anyway? What happens, and when? How?
When you reinstall, use a fresh copy of your version of the .zip file, and follow the updating your site instructions at the rtfm
http://rtfm.modx.com/revolution/2.x/administering-your-site/upgrading-modx
Oh, and if you run into some kind of un-repairable issue with getResources again (as if, everything can be fixed) you can always use pdoResources as an alternate.