Attached are three error logs, one from trying to "use" the silo, one from the fish pond and one from talking to a NPC thats in the lower left part of Pierres shop - which also causes a crash.
*edit* I just validated the game in Steam and it said 18 files were missing and would be downloaded. I'll check if the affected buildings now work.
*edit 2* Solved! Validating worked.