Crash report

TF crashes everytime I open a drive (HD or USB key) and also sometimes on opening dropbox folder from menubar.

This is the same object of both the crash report’s emails
[TColumnViewController dataSourceChanged:] (FoldersOnTop) | v10.11.2, OS 15C47a, bad access, thread 0

This is the crash report for whe I open Macintosh HD on desktop

This is the crash report when I open the dropbox folder from the dropbox app

Best regards