Corrupted RT install? Files missing?

I’m debugging an issue with our RT 5.0.4 install & came across something scary. One of the errors I found in my log says it cannot find RT/Condition/OnTake/pm or RT/Condition/ Checking the /opt/rt5/lib/RT/Condition folder, the files aren’t there.

As far as I know, nobody besides me has done anything with our production server. Why would those files not be there? I have a few extensions installed so it’s possible maybe one of those did something?

Any help would be greatly appreciated.

PEBKAC. Two custom conditions got added by (presumably) me when it was RT 4.x.