Auto transmission won't engage park.

[Highlyregarded]

Hello all . I just bought a 2010 subaru liberty B5 2010.
Went for a long cruise and ill be honest a solid hard drive just in case that has anything to do with it.
Now I can no longer engage park.
Everything else works perfectly.
Moves to R,N,D,M no problem.
This has never happened before.
I know I hit a couple potholes.
Any assistance would be greatly appreciated.